Copa...
Two things come to mind
1.Is there any chance at all you are dehydrated? Are you drinking a lot of water? I once experimented and found I did much better if I drank a small to moderate amount of water with meals and A lOT of water in between meals. This was based on the theory that a lot of water with a meal might hamper digestion.
2. Have you had your thyroid checked recently?
Wishing you well. Sounds a bit frustrating.
One has to be careful at a certain age...I don't know...probably we are all a bit different. But from observation ,with a relative a few years older and two friends my exact age, being just five pounds underweight can make you look ten years older than your actual age! My two friends look sooo much older. It’s a hard thing to get right. I need to lose close to ten pounds. They need to gain about five. I think they have it much easier. I do t think they realize those last few pounds lost changed their appearance ...it wasn’t worth it if you ask me.