Sorry about the confusion, when you mentioned it feeling like being kicked in the tush I presumed you meant your rear end which sounded like sciatic pain. If it's in the pubic bone that's different altogether. I did have some pain like that probably around about the stage you are at now but only for about a week or two and then it went away. I thought SPD but it can't have been for me as it went away. I hope yours does too, but I guess we can't all be that lucky.