Is shedding after PRP+ microneedling normal?

I have had thin hair since my teens but the hair loss wasn't noticeable much until 5-6 months back when i started to notice my scalp has become very visible with wet hair.I consulted some doctors and decided to go for PRP. I have had two sessions till now. I was very happy with the first session as my shedding stopped almost completely. I recently got a haircut after the second session and noticed that my scalp has become visible in the mirror with dry hair. Is this normal? Also on capixyl daily