Hi welcome to HCM,
Your symptoms are suggestive of Generalized anxiety
disorder/GAD.BP fluctuations in your case are related to your stress
.BP around 100-120/70-90 is considered to be normal in your case.Get investigations like serum electrolytes,complete blood picture,thyroid
profile,blood sugars,lipid profile
to evaluate your case.So take plenty of fluids.Drink 3-4 litres of water per day. Electrobion sachets will be helpful. Take diet rich in proteins and low fat.Avoid stress and anxiety.Exercise regularly for 30 min.Music therapy and breathing exercises will be useful.Anti anxiety drugs will be helpful.So consult your doctor for further management.