6 Mos Post on c6-c7 ACDF, Bottom fused fine Topside not at all. Could this be from too much activity?. Doc says another surgery may be in order, however he wants me to wear this Stimulator for 8 wks (24-7). Any info / results? Makes me look as thogh I should be hauling an Oxygen bottle too

P.S. one of my screws is "wobbling a bit". Any help here?