Tissue Migration question. I've noticed some tissue migration over the past couple of months but today I noticed it's actually "fluffed" me out of one of my bras. I have a Parfait by Affinitas Charlotte Balconette in a 36E, but while at work today I glanced down and realized, even with a black shirt on, I was quadboobing out of my bra. When I got home, I asked my bf and he confirmed I'm now quad boobing and when I took the bra off I had a faint pink line across both my breasts. This was a surprise as I haven't noticed any change in any of my other bras (Cleo Lucy, Natori Hidden Glamour, or the 2 from Adore Me) 

Is this normal to "fluff" out of only a single bra and have the others remain the same??