My normal bp and pulse before pregnancy was always 120/80 and 60. Since pregnancy it has been 140/90 and 112. I'm now 31 weeks pregnant and for the last maybe 4 weeks it drops down to 90/50 (not sure of hr). For the past week or so it's been happening daily and sometimes multiple times a day. I get dizzy, really tired, shakey and will sometimes drop things, can't concentrate and it just all around messes me up. Is this anything to be concerned about though? Is there anything they can do if I got to the dr?

I'm also anemic and have been taking iron supplements. Getting checked again this week to see if it's helping (don't think it is).