I think the Plantur 39 (I think its called) MAY help a bit - but not enough to justify the expense for me I'm afraid!
The hair shedding drives me nuts, I'm forever cutting hairs away from clogging the hoover. Funnily enough though I was thinking back to my teens when I had really thick long hair and it must have shed a lot even then because I can remember my mother cutting the hair out from her old vac with much grumbling - I just laughed then though of course
With me its definitely hormone related - if I finally have to stop taking oestrogen I'm fully anticipating having to wear wigs.
May be it's the type of hoover you have?
I have long hair and my hair does shed but it has never clogged or had the need to cut it off.
I don't have the upright type though because that's just too heavy for me.
Actually, wearing wigs is in fashion nowadays. You should take it with stride.
Look Beyounce.... Victoria Beckham and all them people don't grow their hair so long over a week!!
Have fun switching from curly to long slinky hair etc.