Leaves turning yellow and withering and buds are orange

[Astronomical_Orchids]

I will post pictures of it now I had the heater on due to the cold of the storm I watered it again and took an essential oil diffuser and put plain water in it to increase humidity in general. One of my friends has two large frequently blooming Orchids they bloom regularly she had a problem with the buds but that was because one of the plants close by had a fungus she uprooted that plant and threw it out and then it started blooming regularly after wiping it with chemicals. The brand I got was called just add ice Orchids and it said to just give it an ice cube a week. She has the same brand except she gives three a week because her's are larger.