First...how high is "high?" Having numbers for the blood pressure is essential here. In certain cases, waiting weeks or months to take something (medication) to get BP down (goal is always 120/80) may NOT be realistic, and can certainly put a patient at risk. If numbers were >160/100, then medication is in order. If the numbers were closer to <140/90, then some lifestyle managment can be helpful.
To start, I would invest in a blood pressure monitor for home use. These are found at most drug stores and for a nominal price. Tracking blood pressure a couple times a day can be VERY helpful to your husband's provider when he returns for a checkup. Exercise should be limited to low-impact for now. Walking is a good example of this, but avoid running or jogging until approved. As far as diet: LOW SALT intake. Increase WATER (not things made with water). This will help people a great deal.
I'm worried about these chest pains as well. He should have an EKG done, and quite possibly a diagnostic test called a "Myoview
is an odd issue sometimes -- especially when it occures in a person who otherwise appears fit and healthy. Yes, stress
can cause a jump in hypertension, but it is NOT the cause of it. Unfortunately, hypertension is considered ideopathic (we know the risk factors, but can't always identify what actually causes it in many people. Just goes to show that it can happen to anyone.
Best of luck to you both. Make sure he gets things checked out.