New to this, have some questions

I've never had a migraine before so the fact that it might be a VM is worrisome to say the least.

So symptoms started about 3 weeks ago with pressure headache, pain behind the eyes, palpitations. Went to ER, was given fioricet, felt the worst vertigo/dizziness while it was being administered before the medicine settled and I went numb and symptoms subsided. 2 days later, episodic dizziness, orthostatic POTS like heart spikes, brain fog, etc. Went to PCP, started on magnesium, coq10, B2, and Lexapro 5mg. POTS-like heart rate has now settled and I can sleep slightly better but now have light, sound sensitivity, ear fullness, and episodic dizziness in mornings, scrolling through my phone, busy places like grocery stores, salty food triggers. etc.

Had a gaslighting neuro appointment unfortunately (referral to psychiatry) and they want to wait for all the imaging to be performed before diagnosis. Had MRI with and without contrast which came back clear, still waiting on MRA.

My PCP, on the other hand, gave me nurtec and ubrelvy and thinks I should start a corticosteroid to break the cycle.

I have to wait 3 months for my neurologist followup.

Cardiology tests came back clear (still waiting on tilt table to rule out POTS).

Do I need a preventive or abortive now? steroids to break the cycle? I don't wanna wait so long and this becoming a normal for my brain until my followup.

Also, can anybody recommend a neurologist in the DMV area that has more availability and knowledge in vestibular disorders?

Thanks