Firstly mate,
Don't start your post with "Shameless plug", its your track, be proud of it, slap it on the table and let people take it or leave it. By doing that it makes the track more amateurish and looking to start with a sympathy vote. And there's absolutely nothing wrong about writing a song about a disease and the subsequent effects of it.
On a side note, I like this a lot, my type of music. This lady has a great voice and its great to have a video of her actually performing too. I too love that chord change on the second "you are here".
Very good,
Cian