I think we all have a weight we feel ‘right’ at, a healthy BMI, if we go over or under by a lot then it’s natural to feel fed up. Meds can really tip the metabolism, I put half a stone on with amitriptyline (low dose for nerve pain) it came off once I stopped the med. I just didn’t feel quite right with that extra weight so I know what you mean. I also didn’t feel right when I lost too much weight with anxiety a few years back too so it works both ways.

I do have an exercise bike gathering dust - I personally find it extremely boring but if you’re tied to the house I can see it might be okay. If you are able, either before or after working hours, to go outdoors and walk briskly for half an hour or that could help boost your metabolic rate. It can help with stress management too.

One thing I have found is when I am in a good exercise regimen I tend to make healthier food choices too, maybe it’s because I’m aware it’s harder to exercise with a poorer diet- so for me the two things dovetail together.

If you were up for running couch to 5k is a great programme, and although I wouldn’t overstate the calorie burn it does help.