Yes, those around me have mentioned the difference.

Sometimes one has to go back for a tweak or maintenance.

You mentioned 'several' treatments. My understanding that a course of 8-12 treatments is the norm. Perhaps this may be why you don't feel any effect? Definitely mention this to your psychiatrist. Note, I don't think ECT is the sudden fix. We hope it will be but I think it instead puts us in a place to rebuild upon the Depression. I myself underwent a change in medication and some serious therapy in conjunction with the treatments.