The past few weeks have been hellish for me, I wake up well but as soon as I get up and out of bed I feel this nausea and dizziness hit me and from that point (around 10-12PM depending on the day) to around 19PM I feel extremely irritated and overwhelmed by pretty much everything.

I have recently gone to the hospital and they did a bunch of checkups on me and I only had Mastoidite and was in there for a couple of days, but nothing else.

I fear that if I don't know how to describe exactly what I have I'll be misdiagnosed again, this happened a lot in my life because of poor communication skills, so I'm afraid of going to the hospital again on such short notice.

I don't know what to do.
Does anyone have any ideas of what it might be or how to convey these things properly to a medic without getting misdiagnosed?

I can give more info if anyone is interested.