Welcome to HCM
We understand your concerns
I went through your problem descriptions. I feel that you are more worried about some unknown diseases in your body than your BP. I suggest please don't do that. I think you have essential BP at round 150/95 mmgg.
BP can be controlled with medications, exercises, maintaining balanced diet and healthy lifestyle, limiting salt, consuming pottassium rich foods such as fruits, meditation
etc. and mnd you controlling essential BP is easy in middle aged people with these methods.
Do consult a doctor for the stomach problems and have medicines, but don't worry. Worrying always increases the problems. Live life happily and the god should take care of you.
Hope this clears your doubts. Available for further clarifications.