Thanks for posting your query.
Do you have fever, difficulty in breathing, squeezing sensation in chest, acidic belching
, abdominal heaviness?
, sharp in nature suggests underlying lung pathology.
But other possibilities can't be ruled out such as heart and gastric pathology.
You should consult with physician and should go for chest x ray and ECG as preliminary investigations.
As you have high BP, there is possibilities of effect on heart also.
If any doubt, then you should go for 2 D echo and coronary angiography
You should also go for endoscopy
if abdominal symptoms are simultaneously present.
Dr. Mayank Bhargava