i need suggestions please

i am trying to get off coffee fully i get a headech if i don't drink any during the day even if i have just one cup in the morning by the afternoon my head hurts and if i have coffee my headech goes away
however the down side is that no matter what i put in my coffee it makes me feel a little icky after i drink it any suggestions to end the headechs and coffee?? thanks  

I slowly weened myself off coffee and on to decaf before surgery.  Each week, I would add more decaf, less coffee until I was all decaf.  I have stuck to it.  I make a vanilla protein slurry and add that to my decaf in the mornings.  Gets some protein in and taste great.

TRY TO GO FROM 1 FULL CUP TO A 1/2 CUP THEN KEEP CUTTING BACK ON IT