Anxiety caused by my chronic nausea...

hi everyone im matthew im 17 and i have been suffering from anxiety but recently it has gotten worse for no real apparent reason but i do have a weird phobia which started when i started doing research for my chronic nausea (BIG MISTAKE) my phobia is try not to laugh or anything but im afraid of eating disorders. I know it may sound silly but im scared that ill develop one because of my chronic nausea for instance:

My anxiety symptoms:
fast heartrate
nausea
hands and feet sweating
hands and feet going cold
diarrhea(sometimes)
pacing up and down the house
scary/intrusive thoughts

i don't like going to bed sometimes because it leaves my mind to think which only heightens my anxiety i just want to know will it ever leave and what should i do to stop it from showing up as it scares me dearly. I would appreciate tips and knowledge from other anxiety sufferers