What Causes Breathlessness,gastritis And Tingling Sensation In Body?

I am male 43 years. My blood reports are normal except esr 18 and bun 5 taken three days back, however past one week i am having some breathing problem with some chest pain as well as that I am having gasteritics problem. I am also feeling tingling through out my body for last one week. i am having BP for last three years and taking telma 40. further when my BP started three years back with dizziness, \i had undergone heart tests as well as neuro tests and my heart tests came out normal while my Neurologists informed there is some problem with nerve conduction and was in medicine for few months. kindle inform what is reason for the current issue.