Chest pain, high pulse and headache.

For the last 5 days I am having severe chest pain with a rise in pulse at 130 max.qnd bp is severely low 75/40.And I can feel every beats in my head causing severe pain.I have some cardiological issues like excessive drop in pulse sometimes(e.g 30) and minor mitral valve regurgigation and microvascular blockage.Last july I was covid positive.And it has affected all this issues occur more frequently.Sometimes I am having severe chest pain associated with excessive cold sweating,hand,shoulder and jaw pain.For the last 5days it is bothering me very much that my regular works are all left undone.Please help me what should I do or whom do I need to consult.In this covid case rising I am afraid to go to hospital.please help.