Painful and Swollen Breasts During Sleep After Breast Implants?

hi im 2 weeks post up breast implants and i find it still hard to sleep, every time im leaning back or even trying to sleep with raised pillows my breast after sometime like an hour or less become very painful specially on the outer sides and swollen and heavy overall and i feel its fluid inside even though its hard . is this normal and what is the reason ? im not sleeping well because of this having to get up and sit up right constantly .