Paranoid Swimmer

After years of club swimming with coaches yelling from the deck of the pool,

PICK UP THE PACE!  This isn't a pool party! image from google

I've developed the skill to scope out the deck mid breath.  Now that I've added swimming back into my training (giving my shins a break), I'm really surprised at how quickly my swimming habits are returning.  Good, bad, or indifferent, I keep an eye out on the deck.  However this skill has mutated into a serious case of paranoid swimming. 

I was the only one in the pool this morning and it was too cold for anyone to be hanging out on the deck.  So I was all alone, and would stay that way.  As I swam, I kept seeing a figure walking along the side the pool.  But when I lifted my head, there was no. one. there.  It was a really creepy feeling.  Even when I kept telling myself that I was alone, I kept getting the feeling that someone was walking the deck, watching me, judging my stroke and pace.  I'm not sure what to think.  The only possible conclusions I can come up with are:

1. I'm going nuts
2. I'm feeling guilty that I'm not pushing as hard as I could
3. There really is a person walking the deck but hides when I stop to look closer

I'm leaning towards #3.

tsk tsk, and you call yourself a swimmer ...

If curious, this was my swim workout (almost an hour):

1. Warm up: 200 Fr, 100 Br
2. 6x50 alternating Fr and Br, rest 5 sec
3. 100 kick Fr
4. 4x100 alternating fr and Br, rest 15 sec
5. 200 Run
6. 6x50 alternating 25 Fr and Br, rest 5 sec
7. 200 Run
8. 50 kick Fly
9. 200 pull Fr
10. Cool down: 50 kick Fr, 100 Fr

Also, I learned that if you don't eat before a morning workout, you're completed wiped out after.  Just, you know, FYI.

Have any activities that bring you into a paranoid space?