Hello Hills999,
I too have arthritis. Mine is osteoarthritis.
I was first diagnosed when I was 26, that was a huge blow to me too.
When we bought in Playa Flamenca, Costa Blanca, I had heard that the World Health Organisation siad it was the most healthiest place to live due to the salt in the air.
As Janice (Jeansis) quite rightly says, the salt lakes in the area are extremely benificial to arthritis suffers, not sure about asthmatics, but Jeansis is well read and she must be right.
I can honestly say, that when we visit our casa, within 3/4 days, my condition is SO much better!
I can walk much further, sleep easier and even forget to take the painkillers now and again!
I sympathise with you, it's not a nice thing for the body to be giving up so young, when the mind is still thinking "teenage"!
Good luck...............
Kind regards,