Congratulations for stopping heroin - it's a very important accomplishment. Your symptoms could be suggestive of withdrawal - I think you should seek medical atttention now.
It sounds as though you may be experiencing side-effects from withdrawing.
Many people who stop medication/ drugs cold turkey experience some side-effects.
You may like to visit the mental health expert forum and seek advice from the doctor there or try speaking to your own doctor. Stopping meds, etc suddenly can be dangerous so you should get some expert advice.