worried about my phal

[worriedorchidmom]

Hi all, I am a new member of this board. I am heartbroken because my orchid is changing on me! I bought this Phal at Home Depot for 3.00 around April and it has made such a comeback for the past 8 months. It has grown beautifully and has many blooms and even new buds! I keep it in a sunny window and I rotate it every now and then. I keep the moss just a little moist and it seemed happy. Now for the past week or so I am noticing that the flowers on it are starting to shrivel. They all bloomed, but most of them never even opened- except for one. Should I repot this plant? Is it time for them to just fall off? I don't know- this is the first orchid I have ever owned. I love it and I am proud of it for making such a beautiful comeback. I have to save it! Help! Thanks