Start to wean yourself off the high doses of ibuprofen. It can cause a rebound effect with the prostaglandin inflammation pathway thingie in your uterus. It will be uncomfortable, for sure. And if you're not a crampy person in the first place, it will feel like the world is ending (like me). IT DOES GET BETTER. I was really bad the first few days, but then it receded to manageable levels of discomfort.
Check with the Nurse Practitioner or PA or MD at the office. RNs are super awesome, but I would prefer to check with someone who has been diagnostically trained when I'm nervous. I can understand that being this much in pain after 10d would make you nervous! So call them and let them reassure you.