Since you had hair loss prior to start the CG method, the problem might still be there. Have you gone to the doctor/dermatologist lately? I would start there first. Afterward, begin to stop using your usual products one at a time for one week, then evaluate your scalp's condition.
You might also have build-up and need to do a low-poo.
You could also try a hot oil treatment before.
I'm sure others will post as well.
ModCG-Naturally Highly Porous and Dry
This list is not exhaustive...
Pre-treat: coconut oil, sometimes red wine/banana
Clarifier: baking soda/brown sugar paste
Cowash-low-poo: HE The Sleeker The Butter, HE NOYF w/Mandarin
DT:Redken Diamond Oil Deep Facets
LI/Detangler: MyDNA, Nu-Gro Leave-in
Stylers:AH Cupuacu & Burdock Sweet Hair Pudding, DVC Light Defining Gel
Other:Redken Time Reset line
*experimenting and loving it!