Tell your doctor to f*!k off if she won't listen to you, and find a new one who will. Your health is too precious to spend time with a professional who won't take you seriously. On the flip side, do your research first before you bulldoze your way in there insisting on every test. You need to explain to her WHY you need them done because chances are, she may just not get it.
Derma is a doctor you should have on your team; as your primary care for a referral to one. Esp. since you mentioned inflammation on your scalp, which can be treated by someone who understands skin issues. The other key doctor is your gyno who will understand all the hormone tests intimately. Add an endocrinologist if you find you're still at a dead-end; but start with the others first.
Crash course but still do your research: DHEAs, Testosterone, Androstenedione are all androgenetic hormone tests to see if you're too high in the male hormones (produces FPB type of hairloss, sometimes Telogen Effluvium); Prolactin, FSH, LH all test to see if and how much your brain's talking to your ovaries and other female parts to generate hormones; Second bullet on your list is all the iron stuff for anemia; TSH is thyroid but add T3 and T4 too; VDRL is for Syphillis; CBC is general info.