I lost 12stone in about 3 year period and like u at times I felt it a great struggle. I found it best to eat small meals as many times a day as I needed. knowing when to stop is a major part. However never put your health in danger, maybe u now need to have a half mil defill whilst u build yourself back up. Remember why u had this done in the first place to feel and look better, neither will happen if you let your health deteriate, good luck I wish u well