😭😭 someone , anyone?

So for a few weeks now , my ankles and calves have swelled up, I’m 25+2 weeks. I didn’t swell at all with my first baby , she’s now two years old & I delivered her at 41+6. I’ve also had severe itching , like itching that wakes me up in the middle of the night, mostly my feet. I mentioned something to my ob when I saw her , but she made me feel like a complete dumbass for being concerned, said if there wasn’t any type of rash, than don’t worry about it , my next appointment isn’t until September 26th & honestly I’ve done nothing but worry. What could this be?