My husband was rushed by ambulance with Chestpain, weak, pain in arms HR of 37 for angiogram. It was clear. Still cardiac issue? Famil history

Maybe. It is certainly possible he still has a cardiac problem. If you are concerned about this, I would start by discussing it with your primary care doctor and also a cardiologist.
Variant Angina. Vasospastic angina (coronary spasm) is associated with normal coronaries,. In the presence of significant physical, emotional or chemical (drug abuse) stress, chest pain is experienced.. Nitroglycerin, calcium channel blockers, anti-anxiety medication relaxation therapy help. Also worth trying omega oils (eg from www. Cardiamin.com using discount code CMC), magnesium and vitamin D supplements.