I can certainly relate to your last paragraph in a way. After riding only our very upright and heavy beach cruisers here in Belize for a solid year, we got to take several rides on our road bikes on a visit to the US in August. It felt SO strange -- they were so light and twitchy at first! But by the second and third rides, we felt normal again. Yes, you'll definitely re-acclimate.
What a huge accomplishment your tour was. Wow! Congratulations!
My sympathies for your loss...how tragic.
Emily
2011 Jamis Dakar XC "Toto" - Selle Italia Ldy Gel Flow
2007 Trek Pilot 5.0 WSD "Gloria" - Selle Italia Diva Gel Flow
2004 Bike Friday Petite Pocket Crusoe - Selle Italia Diva Gel Flow