Pressure/tightening feeling

So I'm almost 32 weeks and I have placenta previa. I'm just curious if anyone else is having these symptoms whether it be just from being in their third trimester or if it's placenta previa related. But I get this really tight feeling in my vulva. My lady parts have swollen significantly this pregnancy and my doctor did say it is possible to get varicose veins on your vulva so I'm thinking that could be the reason too. But just wondering if anyone else is experiencing this and what they do to relieve it? It feels like this huge amount of weight or pressure down there, like a straining feeling if that makes sense.