I get a weird "half there" tingling sensation when I consume caffeine or alcohol (not every time) its my entire body, like my blood is effected?

Sensitivities. Different people may react to different chemicals/substances in different ways. Just like some people can get intoxicated with minimal alcohol consumption, whereas others can drink more without any side effects, etc. In your case, it appears you have a sensitivity to alcohol and caffeine. Best to avoid these in your case, to avoid those untoward side effects. Best wishes.
Body tingling. There are many possibilities. Try to stop all caffeine and alcohol and see if you eliminate the problem. See your doctor for diagnosis and treatment.