Earlier than beginning affirmations, search for the psychological reason for your situation.
What mindset led you to sickness? What patterns of habits?

The commonest causes of “fashionable” diseases are: denial and rejection of self, self-hatred, worry, mistrust, returning to painful experiences from the previous, false hopes, hypocrisy, anger, pressure …

“Change the way in which you take a look at issues and people issues will change.” W.D.

E book By means of Goals: https://goo.gl/2KsNsC.