Overlap relaxer

I went to get my hair virgin relaxed in a salon about 7 nearly 8 weeks ago.

They didn't quite get all my texture the same in one go and I worried this might contribute to breakage later. My ends are all straight, and the mid shaft is all curly.

I comb my hair very delicately to avoid breakage but I'm noticing more and more shedding and in general I assume breakage especially in the back part of my hair since my last 2 washes.

Have any other relaxed girlies overlapped relaxer on under processed areas? What were your results, more or less breakage?