well, the next step for me would be to shoot film ( meter as usual, load as usual) but develop in say hc-110 or d-76, acufine etc. . . to see if the same issues pop up. If your second roll is o.k. then you rule out camera light leak. if still persists then its the camera. What film are you using? is it expired, is it from a reputable company? all I am saying is ALLL film is not created equal. also, did you close the back securely? is the foam damaged? the curtain may be the issue or it may not. onto stand development. there are a lot of post here on correct procedures, review these post, to make sure you are optimizing your technique and are not sloppy. there is all kind of what if's but . lets start with one, the camera. verify.