hello dear, it would be nice if u once get an ECG done.visit a cardiologist as there could be some problems.go for a daily walk with ur husband, stay healthy.

thanks for choosing health care magic.You need an examination by a your doctor.Mostly as you are having symptoms in particular position it must be muscular pain but looking to your age some basic work up is advisable.If you are having difficulty in breathing while doing other routine or strenuous work,taking stairs etc then cardiac evaluation becomes mandatory.Sex itself is big exercise if your comfortable in other positions means there are no major issues.But prevention is better then cure so visit your doctor.