"Noodle go round"..................................I like that term!
I'm self taught and I've been in that boat more times than I can remember in the years that I've been playing. It happens to every guitar player.
Spudman offers excellent advice. You can have a ball jamming to some of your favorite CD's, and you might even accidentally learn a lick or two.
The best way off of the noodle go round is to jam with other players, but that's not always as easy to set up as it sounds.
You might also try to play stuff completely off of your beaten path. Cater to a "guilty indulgence". Mine is funk, and it usually kick starts me back into the groove again.
Guitars: 2008 Gibson SG Classic, 2006 Gibson Les Paul Standard LE, 2002 Gibson SG Supreme, 2001 Gibson Les Paul Studio Plus, 1996 Les Paul Studio Gem, American Deluxe Double Fat Strat, Bluesville "Super" Strat Copy, MIK Fender "Limited Edition" Tele, JD Bluesville "Night Pilot", Yamaha AES 820, Steinberger Spirit GT Pro, Taylor 355CE, Ovation 1897 Adamas, Ovation CC057 Celebrity
Amps: Axe FX centered rack rig, Mesa 4x12 cab. Germino Club 40, Johnson JM150 Millennium, Johnson JM250 Millennium, Gibson Titan Medalist Frankenstein.
Effects: Tonebone Trimode, EH Holy Grail, Boss CH-1, Dunlop Crybaby Classic, Framptone Amp Switcher, THD Hot Plate, Yamaha AG Stomp Acoustic Processor, Boss BCB-60 Pedal Board.