Anybody here diagnosed with FND?

My doctor diagnosed me with FND and i am so confused why. A lot of my symptoms dont match FND at all. For a example joint pain, muscle pain, being out of breath. It is like they don't listen at all to what i am saying and just slap some diagnoses on me. On top of that I explained to my gp i suspected having me/cfs and he said it is the same type of functional disorder like FND.

I am sooo tired of the doctors.