Sometimes I start feeling dizzy and a little bit numb then, I feel a pressure on my chest and my heart beats rapiditly. What is that?

Needs evaluation. Although simple anxiety and panic attacks can cause the symptoms you describe, it is incumbent on your doctors to make sure that you are not having a primary cardiac arrhythmia that is causing the symptoms you describe. A holter (24 hour) or event monitor (3-4 week) may be useful, as well as an echocardiogram and stress test to see if the symptoms are inducible.
Rapid heart beat. There are many things that can cause you to feel dizzy, but if you are also feeling your heart beating fast then you should see your doctor. He or she may have you see a heart specialist to evaluate your heart.

Related Questions

Chest pains, rare heart beats for a while now. Daily nausea, constant dizziness, some headaches and fatigue for about a month now. What can this be?

Tough one. Lots of things can cause chest pain and dizziness. Elevated levels of Epinephrine and other catecholamines can lead to mitral valve prolapse (usually sudden sharp chest pains ). Anxiety / stress / distress can elevate circulating catecholamines. (as can other conditions). I'm not sure what you mean by rare heart beats. Read more...
Chest pains. Pain in your chest is a serious medical condition. It is always a red flag and appointment with your pcp is warranted. Rec.: see your pcp for further investigation. Take care. Read more...

Today I had shortness of breathing dizziness fast heart beat when I checked my blood pressure it was 160/90 its couse of panic attack or high blood pr?

Need to be seen . You are describing symptoms that could be a panic attack, but also could be a result of serious illness. Please see a physician as soon as possible to decide what is causing your symptoms. Read more...
See MD. Check with your physician to see whats going on and why you are so anxious. Read more...