Can Bulemia cause an Alcohol Intorlerence?

Hey, im a 20 year old woman and have recovered from a 4 year bulemia disorder 2months ago through hypnotherapy. However for the past year or so ive had serious side effects from drinking alcohol. I used to be able to drink alot (mainly spirits) and be fine. However know i get very ill from even 1 drink, i usally always faint, vomit, get painful stomach pains and then get seriously ill for the next day or 2. I feel very weak and shakey (shaky) also. I have seen many different doctors, had blood tests checking my liver, kidneys, etc and all came back normal. Im very worried that I have damaged my stomach badly and that could the cause, but i dont know what i would need to do to find out, would i have to get a scan? This is issue is really getting me down and i just want to know whats wrong and if it can be helped.
Thankyou