General

Any advice, please? :(

You don't need to stuff yourself to get fat. You don't need to stuff before going to bed either.
If you eat a lot before bed make sure you stay awake and upright for at least 3-4 hours after eating to make sure it gets digested(well most of it).

Also getting fat isn't a sprint. Its a marathon. Yes some people can gain huge amounts in small time periods but there lucky. Most of us gainers/feedee have gained over years not one month as you have lol. Just go slower would be my suggestion. As well as get your Gastritis under control first.
9 years