Hi I am 25 years old and having some weird symptoms over the pass 5 years. I have dizzy constantly and sometimes my muscle are quite painful as if of tiredness while my heart muscle's also felt the same way. I also experienced lack of concentration. This thing could go on and off and some days im just so health and some days I will have dizziness and blur vision.

I never had intercourse before and never takes drugs illegally. 90% of the time when I went to place packed with people like shopping complexes, I will begin to get dizzy as if i can faint anytime. And I can't sustain cold for long and certain lights do makes me dizzy.

Some other effects are i am afraid to look heights below me or on top of me. I is some sort of phobia i dare not to look at high places as well as high buildings. If I stare long enough it will shaken my legs and I am really afraid of looking it. Up til now i always avoid public packed areas especially shopping complexes. (I get dizzy easily in shopping complexes; cant sustain cold). I did go for checkups on fever and cold but never mentioned about this symptoms.

When I exercise I feel extreme dizzy and feels like fainting while my heart beats very fast.

I am too afraid and unprepared of what answers or result i will get and things like I cannot live longer. I rather without knowing gone like that rather than knowing the answer and I am waiting to die.

Can someone list out the possible sickness I am facing and if things really get worse I will go to the doc and at least prepared what am I facing. Thank you all