Should I be running?

Maybe try something like couch to 5K where you build up really gradually and make sure to pay attention to how you feel.

I started running again when I was quite heavy, but I'd been a runner in the past. I did end up taking it slow with respect to building distance simply because I started in a particularly cold and snowy January and February and so was stuck on the treadmill where I get bored easily.

Jogging is a lot more force than walking, even if you are going slowly. I'd strongly recommend talking to your doctor first.

If you do get the go ahead, be prepared to take it VERY slowly. As a rule of thumb, never add more than 10% of your distance (and effort) per week. And underestimate what you can do at first. In your situation, you will always want to stop before you think you should. And wait 2-3 days after your first efforts, to see how sore you really are. That will give some idea of whether you judged right or overdid it. A little soreness is to be expected if you haven't done it before, but a lot, or actual pain, means you need to stop, recover fully, and try no more than half of what you did the next time.

I had a winter where I really slacked, and went back in the spring without taking enough time to build back up (I'm a lifelong jogger, 45+ years, through thin and fat). I ignored my own knowledge and have had trouble ever since, especially with a knee I injured (fell when walking, of all things).

Don't feel bad if you only jog 10 paces (for example) your first time out. Just give that first time a few days to see how you feel, and go from there. If you aren't too sore, start at 10 paces (or seconds), 3x/week for a week.

Or try 50 seconds/paces--again, after that first time, you really need to wait a few days to see if it was too much.

I know a lot of folks recommend C25K, but my personal experience tells me that is too much for really heavy folks if they are older and/or have never jogged. It's fine once you get up to the distance and time required in the first week of the program--a really good one. But getting fit enough for that first week is a real challenge for some, and the only way is to start super slowly.

Good luck, whatever you decide to try.

I didn't start running until after I met my original weight loss goal. But I also didn't start feeling the urge to run before that either. I started out walking and when I did get the urge to add some running in I used a couch to 5K app and fell in love with running. IMO it is a good idea to work up to being able to walk at least 5 miles or so before you start running and it would probably be a good idea to talk to your doctor first. And if you do decide to start running then remember to start slow and work up to it. And if you don't like running then there is no reason that you need to run if you don't want to.

Also, before you start running (if you decide to), make sure you have shoes that are made for the task. Proper shoes are important for runners of all sizes and speeds. A speciality running store can watch you run for a brief period and use your gait to match you to a shoe that will offer the right support.

If you want to run do it, if it's more of a case you feel like you should, then look carefully. I loved running, it was a real head clearer, I was never fast or particularly great, but I enjoyed it. Now I can't run and I miss it. But means I get to explore other options. I found the couch to programmes useful. Especially for a starting point. Good shoes are a must and it is hard to begin with, even if you walk a lot. Though I feel it's worth it.