baby bosc not growing need help

[fuzzhc]

Ok so im not sure if im just being paranoid here. But I went on a short break for a few days last week and came back Monday. I had left my dad to look after my bosc and had told him how to take care of it. I hadnt seen the lizard until just now as he isnt coming out of the burrow much. I noticed when he was walking his hind legs shaking slightly as he was walking (I think) cause I only got to see him for a split second before he darted off. Could this be a sign of mdb or I read fatty liver disease? His diet recently has consisted of 2pinkies a day and a fuzzy twice a week and locusts. The locusts have been gut fed every day when I was here but my dad just informed me he tried to coat then in calcium whilst I was away, which they obviously rubbed off.