My vitamin d is 17, could this also explain my cognitive and sensory issue as as well as the twitching, bladder, aches, and pins in arms. other labs/ ua all good?

Less likely due to vitamin D deficiency but we can't rule it out. You should take D3 supplement for achieving a level of at least 30 in 3 months. If you have not started yet, you can take D3 5,000 IU (125 mg) daily for 3 months. If the level is above 30 in 3 months, you cake reduce the dose to 2,000 IU (50 mg) daily indefinitely.

Don't analyze potential effects. Your vitamin D level is far too low. Immediately initiate oral supplementation. Aim for serum level at 50-70 ng/ml, which should be rechecked in 2-3 months for this fat soluble item. Reassess your symptoms at that time unless progression necessitates more urgent further testing.