My hair is falling out and blocked the vacuum cleaner

For the last couple of months I’ve noticed increasing amounts of hair falling out. My shower drain has to be cleared every time I wash my hair. Yesterday I noticed a lot of hair on the vacuum brush, so I unpicked it all, before finishing the upstairs. Today, I needed to vacuum the downstairs, but after a few mins realised I wasn’t picking up bits. I rechecked the roller and was shocked to see the roller was completely jammed with hair. Hubby had to take the vac apart to be able to remove the hair. I had noticed my hair feeling thinner, but now I’m terrified I will lose it all. I buy quality hair care. The only other thing I have is a few pounds too many, and my skin is exceptionally dry - everywhere- hands, feet, legs, tummy, face. Maybe my scalp is also dry and that’s why it’s falling out? Anyone else experienced this?