Hello, Recently I Almost Bled To Death Due To A

Hello, recently I almost bled to death due to a miscarriage, my hemoglobin was at 5 for about 3 days before I went to the emergency room and received several units of blood. My hemoglobin is now at 14.5 but I have noticed ever since then I am very forgetful, feel "dingy" even. Can the lack of proper oxygen for that time period have caused any damage to my brain?