losing 7 pounds

Hi,

I’m new to fitnesspal and I think it’s great especially the calorie counter – so handy cause without it I had no clue how may calories I was eating. What I’m finding hard though is losing the half a stone I want to. I am 5 ft 6 in and currently 10 stone 7 pounds . For the past few years my weight has been between 10 stone and 11 stone. For the past few months I have been in and around 10 stone 7. I am finding it hard to lose 7 pounds to get to 10 stone. I am trying to keep to the 1200 calories a day but some days I find I go over even when eating healthy food.
I have mild IBS (diagnosed last year) and also suffer from migraines if my blood sugar levels go low (so if I miss a meal I will get a migraine).
At the moment I am eating wheat free cereal with soya milk for breakfast. At 11:00 I would have a snack of banana and probiotic yogurt. At 13:00 for lunch I would have salad (lettuce, cucumbers, peppers, tuna and sometimes cous cous and potato salad). At 16:00 I would have another probiotic yogurt. For dinner at 18:00 or 19:00 I would have fish or meat, veg or salad and rice. For the past weeks I have been drinking 2 litres of water a day (well 5 days a week anyway at work – at weekends I mite not drink as much).

As for exercise I try and do 30 mins a day (at the least), either going for a walk, going to the gym or doing classes in the gym. I am hoping to increase my exercise levels in the next few weeks once I fully recover from an ankle injury.

Still with all the exercise and trying to stick to healthy food I still seem to be stuck at 10 stone 7.
Has anyone been stuck in the same situation or have any tips to lose the last 7 pounds.

Thanks.