Phal has wrinkled leaves

[William]

I've been noticing the leaves on some of my phals are getting a wrinkled look. It almost looks as though they're needing water. I they're kept outdoors in a screened patio. I water them almost daily and feed them every week. I must be doing something wrong. The fertilizers I use are varied. Since I don't have a wealth of experience, I just change every week from bloom booster 11-35-15 to orchid plus 20-14-13 to Jacks classic 7-5-6. So far I haven't had a problem and perhaps I'm making more of this than I should but this is my first real problem.