Try the positioning exercises for "ear crystals". They really do form in the ears and the exercises (moving your head around in certain ways) really does loosen them up and helps when I get bouts of vertigo...
vertigotreatment.org/treatment-for-vertigo/epley-maneuver/They say to have a Dr do it, and if you have neck issues that might be wise, but I've always just done it myself without any problems.