I have problem breathing and its progressing?

I’m a 19 year old female i have been having health problems for a few years and been to many doctor non of which helped me i have problem breathing and its progressing now i have chest pain most of the day and tachycardia my heart rate lately have been ranging from 90 to over 100 I’m on medication B1 antagonist buy doesn’t seem to be helping i have mitral valve prolapse my hand toes and lips turn blue occasionally chest experts say that I’m perfectly health from any chest problems and think no the problem may be with my cardiovascular system i have high c reactive protein levels and high sedimentation rate my blood test is normal but at a 4 month interval lymphocytes were the highest in normal range now the lowest and monocytes were lowest noe the highest almost out of range i have slight erythrocytic hypochromic anemia