I've cut out caffeine too but have been having a single cup of black tea when I get up, can't say I've noticed any bad effect from it. Decaf coffee does contain a little caffeine I notice it in a cafe in town I go in I get a very slight buzz after being caffeine free for 5 months lol. I think the reason caffeine is bad is that it can heighten anxiety by stimulating the brain. I would ease your self back onto caffeine over time.