Is it just me or???

Around 6 months pregnant I started to feel this pain on my right leg in my thigh and side area as if it were sore and it wouldn't happen often. By the 7th month it was about 2 twice a week id feel the pain so I mentioned it to my doctor and he said it's was just the weight I am gaining for my twins and to try to lean on the opposite leg if it starts hurting or rest if im walking and take breaks which did me no absolute help at all. Now at 8 months this is almost a everyday thing, i can be sleeping, extremely well rested and wake up in the morning and not be able to pull myself out of bed because of how painful it feels to put pressure on it, most times I have to sit to put pants on because within the few seconds of sticking my opposite leg in the pants and putting pressure on the other it hurts so bad. I know they say pregnant women get tired and have to sit down often but I don't think it's normal at all to barely start off your day and be limping while running just a few errands.... Has anyone ever had these sort of problems while pregnant ? What helped ? or what's even causing it? Because apparently my doctor is no help at all ..