Pain & Stiffness

Is it just me? or is this happening to you ladies as well, when i lay down in the same position for a while im fine but when i turn on my side it hurts my vaginal area like a pulled a muscle or something when i get out of bed its the same way but also pain in other areas like i hurt my tailbone & my hips & im so stiff doctor says its normal but i didnt know being in this much pain and being stiff was normal it kind of freaks me out.