"Uh...I'm not sure..." you stammer, not certain how to respond. I chased mermaids and got turned into a merman so now I'm a man sounds like it would get you stuck in the loony bin.
"Are you injured?" your would-be rescuer asks with an intense look, softly pushing back some of the long hair from your face. "Did you hit your head?"
"I don't think so," you reply uneasily.
"Well, let's get you in to shore first," she says, giving you a concerned glance and clambering aboard the kayak. Shoving her air tanks in front of her, she extends a hand to help you aboard the back.
"That's okay," you try to refuse. "I can swim..."
"From here?" she gives you a disbelieving stare. It is at that point you realize that you cannot see land anywhere around, even on the horizon. "C'mon, just get on." Giving in, you scramble aboard the tipsy kayak but manage to seat yourself across the stern. However, now that you are out of the water, you are painfully aware of your nudity. Thankfully, the diver does not appear to be concerned, and focuses on paddling intensely. Soon, the shoreline is in the distance, and quickly approaches. When you finally hit the beach, you help her drag the kayak up away from the waves to where the dunes give way to grasses. Trotting over to a duffel bag in the bushes, she pulls out a towel and tosses it to you.
"Here you go," she offers, and you quickly wrap it around your waist. "What were you doing all the way out there? Did something happen?"
"I'm...not really sure. It's kinda foggy," you hedge.
"You don't look injured," she frowns. "But we should get you to a doc just in case. What's your name?" You blank at this point. You can't say your real name, since it's a girl's name. Plus, what if someone assumes you have something to do with your own disappearance? This was getting too complicated.
"I...can't remember..." you say falteringly.
"Well, don't get too upset, we'll figure it out somehow," she says reassuringly with a gentle smile, and you are hit simultaneously by feelings of fondness and guilt. If you had to lie to someone, why couldn't it have been a jerk? "Anyway, my name is Sarah Groves. What should I call you for now?" Sarah asks, but you're too flustered to reply. "I guess we could go with John as in John Doe, but that's kinda depressing. How about Guy?" You nod relievedly, and Sarah gives you that smile again.
"Well, Guy," she continues. "I live just over that ridge, so if you're feeling up to it, why don't you come up with me to my place? I can drive you out to the doctor and maybe check in with the police, see if someone's looking for you. How does that sound?"