Talk to your doctors or midwives asap. Swollen hands and face/neck can but signs on preeclampsia. Not saying that it is, but you should let your care provider know as soon as you can. It doesn't hurt to get checked out.
I'm 27w today and my hands and fingers have been getting swollen also..they get real hot and sweaty sometimes and very red.so do my feet and legs all the way up to my knees but only when I'm standing for a little while..but my hands just do it randomly.
Let your doctor know she will let Uk if there is. A concern
I have been too. Im 30 weeks. For your feet try and stay off them as much as possible and keep them propped up higher than ur legs. Like with pillows