Loss of hearing and weak after blood test

Question

Hello all, I just had a blood test done and during the 5th test tube being drawn, I started to feel weak and my hearing felt as if someone was talking into a tin can and I started to feel weak. I had tunnel vision as I got up to walk out right after the tests. My loss of hearing now almost gone or the tin can effect was really worse than ever. I felt really faint at this point but kept walking on my own anyway to my car in which I felt a little better. I felt great about a hour later. Is this something to expect after giving 7 test tubes of blood?

Thank you all in advance for your answers.

Answer 1

You should have told the person who was taking the blood. You'll probably be okay now, but what if you had passed out?

Answer 2

You may have an allergy to the "iodine" they spread on your arm before injecting the needle. I know I do and felt like a train ran over me afterwards. I took a nap and felt much better once I woke up.