its always best to show up with your symptoms, and not your own diagnosis. If you go in and say "hey! my foot has been really tender and sore for about a month. I am having trouble walking, and it wakes me up at night. what is this?" they will investigate. If you walk in (hobble) and say "I think I have plantar fascitis, can I have some PT and a prescription for pain?" They will click off in the center of their brain, and immediatly look with suspcision that you just want drugs, or sympathy. It helps if your foot is swollen or discolored, and a provable injury or illness.
If you go in with MS symptoms, and say "doc, im telling ya, I have researched this, and the only thing that fits is MS!" They think you are just seeking SSDI for a disability income or way to stop working, or you want pain pills, or you want attention. If you go in with a 2 year journal saying "on Oct 3 I woke with a dropped foot, and it dragged for days! after 2 weeks, it just went back to normal, and tada! I could stop tripping on myself. then 6 months later..." it shows a clear path of breadcrumbs for the MD to follow, and be able to draw their own conclusion.
You CAN and SHOULD suggest some things like "can we check my B12 level?" or "i hear Vit D is a big issue today, can we check my level?" or My neighbors dog has Lyme disease, I have heard its in the area, is there a blood test to make sure this isnt Lyme?" so, its a leading conversation versus a demanding one. make sense? Let the MD do their job. If you find the MD dismissive, rude, condesending or feel he thinks you are just playing him, MOVE ON! I would never ever want a dismissive MD to be in charge of my care, even if he rings up as tops in his class.
Good luck and let us know.