On this forum there are very good threads on g-spots, orgasms and other things like oral that I suggest you read. Lots of people on these threads have very good answers and insights.

Educate yourself on everything you can about the female body and how to achieve the most satisfaction that you can.

i feel like that...i just not having sex at the moment cuz its not doing anything...but this is quite a common problem. try u lying down with ur legs over his shoulders, cuz thts supposed to get ur g spot and im guesiin that would feel better
and the hurting part aswel...i get that too, i think its just something u have to get used to cuz each time it should be hurting less..iff not then id say see a doctor. but if ur getting orgasms from oral sex, just keep goin with that