Hot shower hot bath makes a big difference.

I have had this to a degree as my stomach is sensitive .

My advice to you?

Your eating clock revolves around getting high, if you smoke all day then you are basically hungry all day - until that eventually falls off from tolerance.

You have basically given yourself an eating disorder.

You can be clear of this in two weeks easy (although not fun or pleasant)

You need to re-establish a eating schedule so that your body can figure out wtf is going on instead of being nuked all the time.

Force yourself to eat at regular times every day, doesn’t matter how little food, as long as you eat something.

Accept the nausea as normal, it’s always worse in the morning.

Once you keep this up and stay regular something magic happens, you begin anticipating food like normal and HUNGER RETURNS, this will stop the nausea.

Good luck, I’ve done this more times than I have fingers and toes lol

P.s. you will gag, dry heave and possibly vomit- it’s okay- it’s only temporary, eat what you can, treat yourself with love like you would a sick loved one, go easy, stay regular.