My son is a 15-year-old high school freshman who has just been diagnosed with psoriatic arthritis (NOT rheumatoid arthritis). Currently he has an iron deficiency and inflamed Achilles tendon related to the PA. He is already a 10:00 two miler despite being able to run only three or four days a week and runs for a high powered program and running is really important to him. Does anybody out there have a kid or is coaching a kid with psoriatic arthritis? This is just heartbreaking and would welcome any advice. Thanks so much.