I am often asked this question by clients, potential clients, friends, family, etc. The simple answer is that there is no magic formula. Each case is unique and what is fair compensation for non-economic damages (i.e. pain and suffering) is unique for each individual, based upon their injuries, future medical needs, age, health, pre-existing conditions, etc.
If you do not feel that you can adequately determine your non-economic loss, it probably best that you look for competent legal counsel to assist you. After he or she has an opportunity to speak with you, review your medical records, review your medical bills, etc., they should then be in a position to tell you what your case is worth, including your non-economic damages. But until then, it is impossible for someone like me, who has not reviewed anything in your case except for some numbers you have presented, to tell you what your case is worth.
I wish you the best of luck, and hope you get your claim resolved fairly.