My orchid has 3 stems and many flowers, although it looks in good shape, it has very sticky leaves. Does anyone know the reason for this ???
It sounds like you have an insect infestation of some sort. Have a good look at the underside of the leaves with a magnifying glass - it may be scale insect, small white or brown limpet-like creatures. If there are only a small number you can wipe them off; larger infestations can be treated with Provado Ultimate Bug Killer.