There is some information out there that may support some adverse side effects from needle therapy but I really don't know. Maybe some other members can share their experience.

"Some dry needling treatments involve repetitive and rapid needle insertions into myofascial trigger points. This type of treatment causes muscle injury and can also damage nerve fibers." --- Neuromuscular damage and repair after dry needling in mice - PubMed: https://pubmed.ncbi.nlm.nih.gov/23662122/