LBTC said it all, didn't she?
I agree. WRITE down what you told us, make a list. and if you are feeling shy at the dr's office, just HAND it to him.

Your pains are valid and real. you are not a hypochondriac. (this is the correct spelling)

About your DH, you know, mine is mostly like that too unless I am on my bike and something starts hurting suddenly. I tell him how i feel and i either get no reaction, or some irritation. I have always thought it was odd. Many years ago, a family counselor told me he acts like that because it scares him that there might be something wrong with me. So if i am looking for sympathy, i do not expect to get it from him, i talk to a girlfriend instead!
Even a diagnosis will disturb him. So I can't blame you for saying what you did to YOUR DH...