I'm driving myself bonker

I got 6 very faint lines on the Wal-Mart cheapies. I posted them on here and everyone said it looked like evaps but they all come up before 5 minutes. I went to the dollar store and got a Rexall test and a line showed up within a minute BUT it was very thin. Almost like an evap would look but definitely in time phrame. Can anyone tell me what the crap is happening? Only 8