Hello! My name is XXXXX XXXXX it will be my pleasure to help you with your dog today.
This honestly and truly sounds like Lyme or Anaplasma to me. The two big symptoms your dog has: transient lameness in the limbs and the possible tick exposure are both huge red flags when it comes to diagnose these tick borne diseases. There's a website that outlines some of the symptoms here: http://www.provet.co.uk/health/diseases/lyme.htm
One of this problems is that a dog can have a silent infection for years before they become symptomatic...which means he could have gotten a tick on him last summer, it could have transfered the disease and it could have simply been dormant all this time.
I think the best thing to do is to have her tested for tick borne disease. In my opinion, one of the best (and fastest) options for that is the 4DX test. It only takes 3 drops of blood and 8 minutes for you to have a 'for sure' answer. You can read more about 4DX testing here: http://www.idexx.com/view/xhtml/en_us/smallanimal/inhouse/snap/4dx.jsf?SSOTOKEN=0
I strongly suspect he's going to come up positive. Then it's just a few weeks (usually 31 days, actually) of Doxycycline, and he should be back to normal.
I hope this helps.
Should I bring him to the vet tonite or can it wait until am- his behavior is otherwise normal- expept he hobbles about and is less interested in play. He also did not drink today which is why i contacted you.