The pressure you are probably feeling (iam feelng as well) I am 8 months pregnant myself and due in Sept. My doctors basically told me it was the ligaments in yourlower abs doing there best to keep tummy flat and your growing Uterus will not let that happen. I also find it hard to walk with some shooting pains in the lower back area as well this is common.
right now all i can suggest is Warm Tub baths to soak yourself in with making sure you have someone to help you in and out of the tub beings you are almost 8 months and can be clumsy.
Other wise Thats about it. Or ask the dr if there is anything else u may be able to do.