Health Anxiety. Please help!

Sir, i have Health Anxiety from long. Repeating test again and again like bp, sugar etc. Even when all are normal each time. Remembering n overthinking these good test results again and again to satisfy or calm my mind. Have created my own pattern of remembering things like the bp readings I have noted in the copy, sugar values that came normal recently or even 2 months ago. When don't think about the same then feel anxious n puzzled. Nervousness and anxiety of medical tests like ECG, BP, ETC. Heart Rate increases to 90s or 100s  when go for such medical tests. Whereas remain normal otherwise below 70. Botheration to do the BP again and again in order to soothe my mind. When the test results come normal then also feeling what if this test result comes adverse next time. Can't concentrate on my career and do only those task that the mandatory to do and that also very un heartedly. Feel very disoriented, lack of confidence n concentration. Please help