The switch

At some point in the past few years, someone or something or some god or some alien or mother nature or father time or maybe it was even me, flicked a switch. I have no idea when it happened but it did. I am a different person to the one I once knew.  I used to be the same as I always was and had always been.
Now I'm different. I don't know if anyone other than me knows I'm not the same. Is this what the victims of body snatchers felt? I'm not as smart, not as quick, not as strong, not as funny, not as lovable, not as anything as I used to be. I think I'm shorter now too but that could just be because my frame of reference has changed with my 15 year old now able to tell me if I have lint on top of my head. Its all switched!
Life before was the same every day. To change things took either a lot of energy or a major incident. The J curve of Justin was a pretty smooth one. Now its an ECG of a heart attack victim during a 9.0 earthquake.  Life now is pretty much dependent upon the breeze and my ability to mediate myself has gone totally.
Is it age? I have no idea. I see my own parents very quickly descending into the final phase of life but they are way way older than I. I don't recall Dad losing it with me in his 40's. If I'm like this now, what will I be like when I'm 80? I can see the headline now of the 2043 Courier Mail, " Old man goes at someone with a pick axe because they just didn't do it the way he wanted".
My patience is shot to hell, my tolerance not far behind that. Its all very well to know you are being irrational but to stop yourself mid irration is tricky. Its real for you, you are justified and in that moment, nothing can sway you from your mission.
I hope who/whatever flicked the switch can flick it back because the old me was a much better catch. When I was what I was I was OK. I'm not sure that's the case anymore.