New with a question about phalaenopsis

[The Black Orchid]

Hi everyone,

One of my Phalaenopsis has these black and yellow spots on one of the leaves that appear to be wounds of some sort, but I'm worried they are a fungal or bacterial sort of disease and that it will spread. The plant seems very healthy.

I bought it in this condition, although the spots seemed less harmful and smaller. Over the 4 months I have had it, they have grown a bit changing in colour and size.

I am trying to attach some pictures that i took but it is not allowing me to, I'm not sure why, could anyone help me out with that? It says uploads failed..