You need to start low on Spiro and can always adjust. Starting low allows you to see how you react to it. Metformin, as far as I know, is for insulin resistance (which I have) or diabetes (related to IR)... I don't know that it directly affects the hirsutism...

I can tell you when I was put on both together, I experienced MAJOR dehydration and had to discontinue the Spiro, so please be careful to watch that.... For some folks it is a godsend though...

If you have major gastro effects from the Met, try reducing your carb levels and staggering your dairy at least an hour away on either side from the Metformin. There will be some adjustment factors to this.

When I was started on the spiro, I think my dosage was similar to yours. With my met, I was given the 500 mg ER once a day, so taking the non ER twice is a moderately low dosage to see how you get along. As with any medications, the smallest dose with symptom relief is always where you want to start.

Good luck!

You don't want to know my numbers, they'd scare you off (I got to where I am from quite some time of trial and error and finding what works for me, because I'm what I call a "hard loser" and even @KnitOrMiss' style keto wasn't doing it for me).

That said, here's my full write-up on it -- http://health.shaunagordon.com/a-diet-for-pcos.html -- the Cliffnotes version is this:

Carbs -- 100g or less. 100g is a good starting point, but don't be afraid to come in under it. Try not to go over it. Stick to non-starchy vegetables as your primary source. Favor low glycemic load foods over high glycemic load foods.

Protein -- about 100g. Specifically, 1g/lb of lean body weight, which generally comes out to around 100g for women. It's okay if you're over or under on any given day. If you're on the short side of 5', then you can probably go lower and be okay, if you're on the tall side, then going over regularly isn't bad.

Fat -- fill in the rest, to satiety. Yes, this will likely be over 100g (perspective -- mine's about 150g for 1800-2000 calories). Get it primarily from saturated and monounsaturated fats, with polyunsaturated sources used sparingly. Avoid trans fats and industrial seed oils ("vegetable" oil, soybean oil, corn oil, etc). Animal fats, coconut oil, high quality olive oil, avocado oil, etc. are fair game. No, the fat and saturated fat won't kill you or cause you hearth disease. In fact, it will likely fix your risk factors.

Avoid grains, legumes (at least soy), and dairy for at least a month -- There's evidence of some crossover with gluten sensitivity, soy is extremely high in phytoestrogens, and dairy is abnormally insulinogenic. These things can hinder your healing and weight loss, so it's a good idea to remove them for at least a month, and if you still want them after that month, re-introduce them one at a time, and slowly, to see how your body responds.

From there, adjust as needed and as you learn.

I found a cauliflower pizza that my husband and I both like! He's not a big fan of cauliflower, but we tried it anyways. It's one of our new go-tos! (We just use the crust recipe and do whatever we want for the toppings)

http://www.pcosnutrition.com/links/blogs/cauliflower-crust-pizza.html

You may have to do some trial and error with foods with the met. I'm on a specific food plan from a dietician, so I won't bore you with the details or get everyone up in arms because it doesn't meet their definition of the correct foods/eating plans for PCOS (remember different things works for different people). I found I can eat a sandwich with no problem, bread doesn't bother me, but rice does, so I had to give up rice. I can't eat high amounts of fats, but I can have dairy, so yay for the ranch dressing, no for the italian on my salads. I can eat broccoli to my hearts content, but asparagus.... not so much. Apples, yes! Bananas, no!
So, keep an open mind to all your food, and give your body a chance to adjust, you may even find that there are some things that you can eat, but in smaller quantities before they trigger a {ahem} "metformin reaction", I've even found some foods that I'd never thought I'd like that I do, but I just can't have that much (which may be why I like them now, don't have to eat too much at any time!)

Another trick to try is to wait about 15-20 minutes after you eat to take the met, the nurse suggested this when I first started and was having trouble and it helped