post break up sick

i broke up with my boyfriend about 2 months ago and when i did it i was sick for 2 weeks. nauseous, chills/fever, not able to eat anything and such. i ended up losing about 10 or so pounds from it. since then i’ve gotten better but here and there i will get the same feeling again and get all nauseous and sick to my stomach over it and i don’t know what to do about it. if anyone has gone through this or has some tips please let me know.