I recently just notice i have this too but not to the extent it would keep me up..mines always swell after my day at work and first thing in the morning when i get out of bed i have the burning sensation on the soles of my feet. Haven't discussed it with my doctor yet.
Two toes on my left foot are swollen and itchy since yesterday. I'm 22 weeks. Haven't gone to a doc yet. I have an appt booked for third anyhow so will ask then.
Yea, for me it burns usually in the middle of the night. My Dr said it's probably from the swelling but I'm not selling that much and not a lot of other people seem to have that much burning.