Need your advice

Ana • My husband and I are expect our first child. We are beyond excited!
Ok ladies I need your expertise. I am 16w 4d pregnant and for the last few weeks my legs have been falling asleep to the point where it hurts. I have only gained one lb. and do not get swollen or anything. However, a few days ago I noticed these red dots all over my legs and feet (which I swear are not usually there). I had a doctor's appointment and she was a little concerned. She ordered blood work but I won't hear anything until next week. Anyone that can help me figure this out? I'm a little worried especially because my blood pressure was a little low. 
Thank you in advance!