Cannot eat without nausea

I have been a pretty consistent weed user for about 3 years now taking a week break a couple times throughout but I rly need to quit now because I think it is really affecting my physical health specifically my stomach. I am on day 1.5ish and before quitting I rly only had an appetite while high and I am sticking with bland foods since my stomach is so messed up right now but every bite I have of anything I feel so nauseous and full right away but I know I need food in me. Has anyone else gone through just physically not being able to eat but knowing your body needs it? And what did you do to help or anything, this is very hard but I need to quit even though I’m struggling.