My bp is almost 20 inches long and only 90 grams or so. So far I've fed him Fuzzies and lately adult mice.

About a month ago he went through a very bad shed, and didn't eat for 2 weeks, then I decided that maybe the adult mouse was too big and fed him a fuzzy and he ate it within seconds. Then 6 days later I offered an adult mouse and he refused yet again. I'm very worried. I think he's lost quite a bit of weight. Currently he is around 90grams, maybe a bit less.

What should I do? What should I feed him? I get the fuzzies from Petco. They also have adult mice. He ate 2 of them before I skipped a meal due to shedding, and he refused another one a week later. Since then he's had only 1 fuzzy. He has refused 3 adult mice already. Should I feed 2 fuzzies during each meal for awhile? Also is it okay to feed every 5 days or so until he adds some weight?