Different panic disorder. See a doctor?.

I went to the market by bicycle yesterday. The distance was 12 km. When I returning home, I am cycling  with 20 kg weighed. My body weight was 45 kg. Yesterday the sun was very hot. I was  feeling shortness breath. The body got tired very fast. The heart rate increased and Some hormones releasing from my kidneys. I already have panic disorder and I am afraid to come my home.  what is it that I have to see a doctor ?. I have not had any panic disorder before, it has come from the medicine given by the psychiatrist. The doctor gave me some antidepresent to cure this disease which made me more panic and a tingling sensation from the kidneys went up and down from the spine then my heart rate increased further vomiting, diarrhea, pain, sore throat, burning sensation all over the body, hands and feet Feels drowsy, stays off mood. Psychiatrists have changed a lot of antidepressants but not getted benefits.i think it's automatic nervous dysfunction  .