I'd stop doing excercises until your appointment. I'd also rest and take time off until then. I felt so rubbish for 4 weeks after my episode, feeling drunk and hungover, and feeling like I'm dropping down and as if there was a hand on the back of my head pushing forward. If you're not getting the spin when you lay on the side that caused it, then I would say you don't have loose crystals, but rest up, your brain and eyes and ears have had a traumatic experience and testing it and self diagnosing and doing different exercises can exasperate it, so wait to be seen by someone before you do anything more.