Deformed buds on Phalaenopsis

[JanN]

Hi - I am brand new to this site and a little unsure as to procedure so apologies if I have done something incorrectly.
I have had Phals for many years with no probs but I have a plant which has thrown a lovely strong, branched stem of buds. However some of the branches have distorted and are quite fat at the ends and the buds are either failing to develop or are developing a little bit and then turning red or yellowish and dying off. Other branches on the same main stem look perfectly ok but none are ready to open yet. The plants are several years old and have always been fine. No change to position or any other stress that I can think of. Anyone got any suggestions as to what this is? My search on the internet has provided only one possibility - a new disease on Phals recently identified in China, I think, in which the buds turn red and fail or the flowers are crinkled if they open, whilst there is no damage/distortion to leaves - but I cannot believe that my plant has anything that other people haven't seen before!! I would post some photos but as this is my first visit I don't think I can.