Hi everyone,
Took a FRER yesterday afternoon with a very faint positive but definitely there and started to appear as a pink line with time window and ended up getting stronger.
Did the other FRER this morning with FMU and again a very faint line appeared within the window. This one was more grey or white than pink but there was pink tinging at the edges. However this morning's line disappeared but when I went back to it after eating breakfast it had come back.
So confused. Has anyone else had weird FRERs?
Attached pic of yesterdays after I took it apart. It was not this strong within the window but was there within window.