Anyone heard of SPD in pregnancy??

Angel
Tonight I just randomly googled "25 weeks pregnant and can hardly walk" since this is the case for me...and SPD popped up . I've never heard of it but I looked into it and that's exactly fly how I've been feeling since I was 15 weeks!! I'm in so much pain in my lower back pelvis and my legs I can't walk or stand for longer than 30 mins at the most! Getting dressed is extremely painful..getting in and out of bed is awful and I can't turn over in bed without being in pain! I told my first doctor I was having pain and she said oh it's just part of being pregnant...but I've been pregnant twice before any never went through this...and the further along I'm getting the more pain I'm in and can't walk! I've been "waddling" probably since I was 15 weeks pregnant due to the pain and discomfort ...also after my second baby I noticed if I closed my legs together I could feel like my pelvis would pop...but it never would hurt so I didn't think anything of it..Im curious if anyone else is dealing with this excruciating pain!! And what did your doctor tell u?? Also have u heard of this SPD??