But now in his third week of an alternative treatment, intravenous Vitamin C, he says things are looking up.
The treatment is given through an intravenous line, allowing the body to consume a high level of the vitamin, which is believed to help people improve their quality of life and deal with some health conditions including cancer.
However, the treatment is expensive, with sessions costing up to $250 per dose, so Mr Jones and his partner Melissa Ewins have started an online page, on website Givealittle, to help fund his treatment.
So far more than $14,000 has been donated to the cause.
"My journey has definitely been an eye opener to a lot of things, it's taught me to keep positive and surround myself with positive people. It's nice to see those people and even strangers be so generous and help me continue this treatment."
Mr Jones, a personal trainer, said since starting the new treatment his energy levels had increased.
-To donate go to www.givealittle.co.nz/cause/kurtisjones.