Is it normal to feel dizzy after microneedling? I have had three or four dizzy spells since starting.

Microneedling is a minimally invasive tehcnique which provides activation of fibroblasts at the reticular dermis layer. This mechanical stimulation of the tissue results in thickening of the tissue and subsequent skin tightening. The activation of cellular protein production allows for more healthy looking skin.  Other options for the skin include fractional laser treatments for similar treatment options. 

No, this isn't typical. If it persists, I recommend following up with your Doctor. To improve final results, I always combine microneedling with prp and lasers. See an expert. Best, Dr. Emer