Breaking bad habits

The last 24 hours including this morning I have had a headache.  Not a migraine, but about a 4 on the pain scale. I think it's because I have been depriving my body this last week of caffeine.  I have been getting into bad habits with Coke Zero, buzz bites, and an occasional Mountain Dew.  Shame on me.  Now that I'm trying to get back into good habits, my brain is retaliating with a little headache.  But I will conquer!

Slept in this morning.  I need to get to bed earlier!
Was in the water at 6:00am:

200 free
300 warmup
400 - 8 x 50's kick on 1:00
400 - 8 x 50's drill on 1:00
400 - 8 x 50's IM order on 1:00
1000 - 5 x 200's alternate stroke/free by 25's on 3:30
800 - 4 x 200's free (first 3 pull last one no equip) on 2:30
200 easy

Then Masters disbanded and I did the workout again:

300 warmup

400 - 8 x 50's kick on 1:00

400 - 8 x 50's drill on 1:00

400 - 8 x 50's IM order on 1:00

1000 - 5 x 200's alternate stroke/free by 25's on 3:30

800 - 4 x 200's free (first 3 pull last one no equip) on 2:45

200 easy

7200 yards total