AND your med's effects as well. Some meds MUST be taken on a strict regimen in timing of day, with/without food, some not too close together as to cancel one or the others' effects. Not to mention the supplement issue which can influence a medications true efficiency or not. Don't forget as well, that LOTS of meds have 'dry-mouth' as a s/e...take more than one with that s/e...well, think on it..
Keep in mind that YOU have to be the one to really put any puzzle pieces together- Then when you think it mite be a 'something', don't tell a doc to do a test or the like, make it HIS idea by asking: 'Do you think 'this' mite have something to do in the picture?' Doc will either test or not.
As an example, last month my hypo-thyroid was changed to Hashi's, [another auto-I to add to the list-SIGH!] All along I'd been asking about the thyroid being a player in my Auto-I game, and well, all the #'s were disgustingly normal, but Synthroid would make the #'s normal no matter what else is going on...Docs in each specialty don't know HOW another set of issues in ANOTHER specialty can and do come into play...or wreak havoc.

As for dizziness and all, in my case I've realized that I get that way if I miss a key med at a key time...or forget to eat. Miss enuf meds, even a pill of this and one of that....my whole system goes into fall-down-and-go-boom mode Big Time! Catching up usually takes 2-3 days to get back into sync. In the meantime, just getting out of a chair, or down a step, or whatever really REALLY requires planning, and thinking. Just in case. It makes one soo disgustingly organized....until one forgets? Hope this helps a little! - j
I tend to 'forget' once too often at least once a year?