Diagnosis requested

So, when I attempt to leave my house three times and each time I turn back to make sure that I turned the iron off, is it:

1.       cautiousness (because I don’t want the house to burn down and it be your fault),

2.       habit (because this happens every time I use the iron),

3.       short term memory loss (c’mon….three times within 15 minutes!!??!!!)

4.       OCD (if I start doing things in “3’s” it’s going to suck big time!).