Welcome, blueline.
Yup, I agree that there is really no typical user. Addiction does not discriminate.
I also strongly agree that you should talk with you doctor about the withdrawal and about getting some non-narcotic pain meds for when you do need relief from the actual pain.
As to the withdrawals, I would say that the worst should be over at about 5 days. Until then, hot baths, Ibruprophen and exercise will help. Getting clean also has a component of insomnia and depression 'cause those pills mess with your brain chemistry so be easy on yourself for a few months.
Good luck and keep reaching out, k? We're glad you're here!