I think the problem is this: the training equipment is heavy, the number of groups is small, and the strength grows rapidly in a short time. The muscle trained in this way is not high in density, but it has small weight, few groups and slow growth. The muscles trained in this way have high density. After you say no exercise, your muscles will shrink. What I'm thinking is that your muscles grow rapidly, that is, you gain weight in a short time. One thing is that your training time is too short, more than a month. If you do this, you should resume exercising every other week, so that you can keep in good shape without wasting too much time. I hope my answer will help you.