Not exactly like that, but kinda. The forgetting how to swallow thing, yeah I get that sometimes. It's like my brain just losses the motor pathway to trigger swallowing. It's very annoying. If I'm drinking something without a straw - or anything that involves moving while not being able to see my environment - while standing up my balance starts to go and I need to lean on something (or even just have a firm touch on it, I press my elbow against the wall in the shower when I need to close my eyes to wash my face or something and that works fine). Maybe where my brain focuses on swallowing and drops balance your brain focuses on balance and drops swallowing?
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You should always be in touch with your inner magic ninja weasel.