No hypo with ghrp2, ghrp6 yes. insomnia yes.
Prolactin symptoms started about 2 months in - sore nips and low libido. I didnt take anything to combat it but I know some people use cabergoline. Prolactin sides are not permanent but in presence of higher estro levels can cause gyno over time.
Stopped using a month or two later partly due to the sides, mainly because any benefits were minor, despite pinning 5 times a day. Not to mention the cost.
I'd recommend getting your igf1 levels checked before starting and after 2 months to see if you are getting anything out of it.