Weird Sensations in Head. Is it anxiety attack after effect or something else?

I am 19 years old.I had problem of ED, Gynaecomstia and small private organ last year in April. I consulted a doctor (Psychiatrist) and he gave me antidepressants so that I will be fine. I thought I will be fine after taking the medicines but in September 2010, things got worst, I didnt get fine at all & it seemed as if it is getting more smaller and smaller. So, I told my family doctor again & had USG of testicles & It was normal & we consulted another Psychiatrist & he gave Ziprasidone & two other medicines so I started taking them in hope of getting fine. Now, in March 2011, I had to shift to some other city & so whenever I used to miss my dose unintentionally, I couldnt sleep that night & next morning, I felt really aggressive & The penis' and testicles size had been decreased. One day, my parents had gone out for some work & I was alone at home & suddenly, I felt something is going to happen. I had rapid heartbeat, sweating & It felt I am losing control. I opened the door of my house & called my mom & told her to come back fast. Then when my parents returned, I was normal. Then, in this city, I decided to consult a prominent urologist. He said everything is fine & he again referred to a psychiatrist. Then we consulted the psychiatrist & he diagnosed me with 'Hypochondriasis' & he prescribed Fluoxetine & Ziprasidone & I hoped to get fine through it. I started taking the medicines. Then, about my ED, I went to local doctors & they gave me some herbal medicines & my ED got fine through that but that was temporary. Then as I was still not sure about my penis size & ED, I again went to urologist & he assured me that my size is normal & testicles are normal and fine. Then I told him about gynaecomstia (enlarged breasts) and then he told me to consult a endocrinologist who ordered some hormonal tests & every test was normal. Fine with that. Now, last month, I went alone to a hospital to get reports in the evening & it was about 600 metres from my home & I was afraid to have a panic attack. When I reached the hospital, my heartbeat raced up, I had sweat & I felt like I am dying so I started walking back to home and after walking about 100 metres, I called my mom & started going back to hospital in hope of getting inside it but at the moment I saw the hospital's entrance, I suffered from the anxiety attack again. Then I returned home & felt good. Then one day, I went to a place in the city & didnt feel well at all in the car. My parents and my grandfather were with me but I was feeling as if something will happen. Somehow, I went to that place but when I returned home I felt a lot sick. Heart beat raced up & I felt something is going to happen but nothing actually happens. Now, my condition is fine but I have some weird sensations in my head & I am somewhat afraid to leave my house be it alone or with anyone else. All the reports have been normal. Now my question is - Why is it happening? Is it the effect of anxiety? Also, one day in the morning when I urinated and came back, everything blacked out in front of me. I am really confused. What are the solutions? & If it is nothing, then what it is? :( Also, what I feel is my testicles are very close to my body & they are completely in. and the penis size is also very small and at the head of it, I have some kind of lines. Am I taking the right medicines? Is there any solution to my anxiety problem? And if all hormones reports are fine then why am I having ED?