Last Friday , on evening I felt sudden dizziness and vertigo type feelings for 15 min . Before that I have chest pain frequently for last four days. After Friday I have constant hedeche particularly middle of head. I have on medication of cholesterol.as I have high triglycerides .Till now I have bad hedeche specially middle of head. Feel pain when pressed that area. Is this sign of stroke? I can't concentrate anything because of hedeche. Beside I have an incident two months ago about head concussion at front head. I am confused about the problems on Friday and current days. Is this brain related disorder or something else ? Please help.