Hi, I Am 28 Years Old Male.I Feel Dizziness,shaking Muscles

Hi,
I am 28 years old male.I feel dizziness,shaking muscles and having bad skeletal muscles health.some time I feel shortness of breath and its happens mostly when I sleep and I feel my heart has stopped working and after its pounding at high rate. This condition is getting worsen. I have no issue with blood sugar and low blood pressure. Please tell me what's going on and suggest solution.
It is important to mention here that I feel these condition after 2 days of sex. Is it related to harmonal deficiency or some other health issue.Please advice