I need some help with my caterpillar. I have two young caterpillars which hatched a while ago(instar1) and I have one big one that doesn’t want to eat. He/she stopped eating 5-6 days ago and I know as I always take the bad leaves out and put the new ones back in. Anyway there are no pieces of Frass or any bite marks. Somtimes I look for him/her and he’ll/she’ll be under the soil. This started after he/she did his/her moulting. The little guy turned a darker colour then he/she turned back. I’m wondering if the cap on his/her face is still on stopping him/her from eating or even lost his/her memory as I have heard that can happen. I’m really worried about him/her. I want to do whatever I can do about it and know what it is. Also he is too small to be turning into a butterfly.