My sister is anemic and she s keeps having spells like she s going to pass out. My family and I think it s more than just being anemic. Her symptoms right now are cold core, cold sweats, dizziness, left shoulder is uncomfortable, tingly feelings in my arm, and extreme weakness. She is on her way to the emergency room, but I feel her doctor is not taking this serious. Any idea what may need to be checked on her to find out what s going on?