Get a small plumbing snake at a hardware store tomorrow, Tonight, use a coat hanger with a small hook to go from the top of the toilet and try to clear the blockage. Most toilet plugging problems is LACK OF WATER WHEN FLUSHING SOLIDS. After you get it unplugged, use lots of water when flushing solids and you'll avoid this happening again!
Days camping (2015)----88 days
Days camping (2016) ---110 days
2016 Wildcat MAXX 28RKX (33' TT), 2007 13' Scamp
2015 Ram Laramie Hemi
30 years RV'ing
12 different RV's