I started taking Yaz birth control last night. Almost 24 hours ago. Starting about 9am this morning, i started having tingling in my left foot. This has happened all day with pain in my heel, I can't put any weight on it. I have also had a cold sensation in my calf and ankle of the same leg. No severe pain. I read some very bad blogs about the Yaz drug today about perfectly healthy girls having blood clots and strokes. I have a dr appt at 8am tomorrow, but should I go to an urgent care before then?