I have been taking two Advils twice a day for almost three weeks, for an Achilles tendon injury. After feeling some discomfort, I started Prilosec once a day, about about two weeks ago. I am feeling some discomfort again, and the Dr. recommended taking Prilosec twice a day. I have some mild osteoporosis. Is that OK? And if so, should I take the second one before dinner? Thank you!