Sudden rise in blood pressure. Problem?

I am a 60+ housewife. I am facing sudden high blood pressure issues for 2 months. I am having anemia, high thyroid and asthma as well. I am taking medicine and inhaler for all this issues. Now my hemoglobin is 9.6. but suddenly in night times usually I am feeling sudden uneasy, dizziness and discomfort due to high blood pressure ( 141/90) after every 3-4 days interval associated with gastric and acidity and also sometimes shortness of breathing as well. I am confused why shortness of breathing occuring! Is it due to asthma or something else?? And also why this blood pressure problem?? Because usually in summer time I don't have asthma attack. But now a days I am suffering . I am taking medicine amlodac 2.5 regularly after that also feeling sudden rise of bp. I have tested my creatinine 0.73 mg/dl and suger fasting 90. Please help me regarding this issue.