Hi K.,
Although I didn't feel well in the evenings during both my pregnancies, I did not experience tingling like you described. Having said that, whenever an arm, leg, hand, etc. falls asleep the best thing to do is move until the circulation gets going and the tingling sensation goes away.
As a perinatal fitness specialist I work with pregnant women all the time and have seen some crazy symptoms ease up with proper prenatal exercise. I would recommend seeking out some form of prenatal fitness, one you think you might enjoy to get your circulation going and ease any pregnancy-related aches and pains. Always check with your healthcare provider or midwife before engaging in any physical activity.
If you are the type that likes to workout in the privacy of your own home you can check out Rhythm For Life - The Prenatal Belly Dance Workout DVD, available at www.maternaldance.com or www.marchofdimes.com/catalog/product
I hope you feel better.
S. Caesar, MA
Founder
Maternal Dance