YES i did multiple times...i ended up having to get 7 units of blood last year, and multiple other infusions, ie magnesium, potassium, etc..not to mention more rounds of nuelasta that i care to count due to low neutrophils, low wbc low whatever... actually got told by one infusion nurse during one of the blood transfusions that she didn't know how in the world i'd walkied in there from the parking garage with my levels so low, only time they'd seen that the people were brought in wheelchairs.....pretty par for the course...the blood will make you feel a little better for a few days...but generally after a transfusion of blood i had to wait at least 4-5 days before next chemo... hang in there...its really pretty par for the course...at least you made it to chemo #4 before that happened...i went i can't remember either 6 or 7 weeks between my first two chemo's because of how bad my levels dropped...there IS light at the end of the tunnel...i go back tomorrow for a followup but still expecting a NED continuing...