dizziness, reoccurs seemingly with colds or allergies, no help from ENT yet

I have been having this problem off and on for about 9 years it seems to be related to getting a cold or allergies. Don't get spins (generally get the spins when I roll over in bed)so much as off balance and sometimes 'floaty' feeling...hard to drive sometimes. Have seen ENT many times, had MRI, ENG, even had them do an Eppley. Had one really abnormal ENG and Dr thought maybe MS but that has been ruled out now. Next I am going to neurologist, allergist and get blood work done. Dr. says it shouldn't have anything to do with allergies, but he's not the one thats sick. Seems to get worse when I travel up and down in elevation, I will get pressure-ear ache, and louder ringing and more popping in my ears at this time as well. Have a history of back/neck & jaw pain/tightness. Have a history of ear infections as a child. I am truly beginning to feel at my wits end about this. It is affecting my life and my job. It will usually clear up after a few months on its own but that can be a long wait. Seem to have some days that are worse than others but generally get progressivly SLOWLY better from time of intitial onset. This most recent episode has been the worst so far...any ideas, anyone want to share similiar experiences? Thanks

[Barktreed]

sometimes when I blow my nose or when I hold my nose and blow to relieve some of the pressure on my ears I will get the spins and/or see stars for a few seconds.