Good Afternoon. Yesterday When I Got Up Out Of Bed

Good afternoon. Yesterday when I got up out of bed I couldn't walk straight. I kind of veered off to the right and corrected to the left and a little back and forth. I didn't think I was going to fall over but it lasted for about twenty minutes with a couple of times turning me around about a quarter turn. I'm 66 yrs old, 20 lbs over weight, and on blood pressure medicine. I went to the urgent care and the lady doctor said it was probably vertigo caused by diet. I don't think so. I have bad teeth and pressure in my sinuses, a sore throat that hurts my ear when I swallow and I still feel kinda dazed. Like if I stop real fast walking my head keeps going a little bit. And sometimes when I'm walking and turning to the left my head will keep going right a little bit..... I'm thinking it has something to do with sinus or dental infection. What do you think....Where should I go from here I have a doctors appointment tomorrow but I don't really know where to start....