KC good to see ya doing the IGF, with your experience on PH's and other homebrews will be nice to see some comparisons. I started my IGF 15 days ago and it is an impressive compound, you'll see.
Some people have posted about the Hypoglycemic affect similiar to insulin, when I first started, I felt it a little bit but nothing strong just a low blood sugar feeling, haven't felt it since the first couple days.
Have not had any pain in the joints even up to day 15 and increasing dosage to 60-70 mcg per, everyone is different, hope that goes away for ya.
Keep us posted bro!