Exercise is a natural remedy that never fails to make me hungry.

Marijuana is well-known for causing "cravings".

rennie lembo Ginger is supposed to help with nausea (and digestion in general).

Here's an article on herbs to stimulate appetite. :)

Herbal Appetite Stimulants

classic symptoms like lack of appetite and nausea on empty stomach indicate your digestive system has been damaged and must be healed to get you back to where you want to be. ideally you would seek out a full health assessment from an experienced herbalist or naturopath.

if you were my client I would start you out on this formula....make into a tea or mix with nut butter and eat it. for a badly damaged GI expect to take the formula for a year or maybe more.

https://www.amazon.com/Gentlemen-Decoction-Extract-Powder-Natural/dp/B018T6LJ4M/ref=sr_1_13_a_it?ie=UTF8&qid=1478021880&sr=8-13&keywords=four+gentlemen+formula

for acute nausea eat a piece of dry toast or suck on a piece of crystallized ginger, ginger root is specific for nausea.

try to eat a bit of food several times on a schedule, a few bites each time at first is enough if that's all you can manage. include a little protein and a little carb in each snack. examples might be some nuts or nut butter and celery or apple slices, chicken or tuna salad on a cracker, etc. good luck~