I’m worrying about coolant level???

Ok… I have a new 2015 Foreman Manual Shift… I LOVE IT. So, After the first 100 miles I replaced oils and filters and added a "drop" of coolant to the overflow container… it was showing closer to low line than high line… the drop put it just slightly above exact middle…. I have drove it twice since and everything seemed perfectly fine. Tonight I go out an look at it looking forward to Saturday when i can go ride again and the clear plastic overflow the level is BELOW the bottom line! KIs this normal? I don’t see a leak anywhere and the oil looked good??? should I add more coolant and get it back to the lower line/middle again??? WTH? I am freaking out about the level now.

Here’s pictures…

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