Book review: 'I'm thinking of ending things' by Iain Reid

The closest description I can give to the feeling that this novel gave me was the joyful uncertainty of IBS (and I'm sure that Reid will be psyched to know that I've made that comparison). But hear me out. You know something's wrong. You don't know what's causing it, you don't know how it's going to manifest itself - only that it will, and soon. You ain't gonna have any control, and you can't stop it. You feel a bit sick. This novel feels like a slow descent into that same feeling as it begins to spin uncontrollably away from you.