Scary and I am sorry. Could you ask one of your docs to preform those tests? I had to beg for my mir of my ankle but I got it. Better safe then sorry. I know after months in bed when I began to walk I felt like my legs would give out. Even now sometimes I do. My docs said it won't happen just feels like it but they have been known to be wrong so try not to push it. I am sorry your husband is a little confused. It is hard to know what it is like but I hope you can use your voice and tell him. Is there anything to help calm yourself which I know is easier said then done. I am filled with anxiety but things like calling a friend or even getting out for a few like I just came back from dairy queen help. Hang in there.