Since we switched teachers and started the patch along with natural things he seems to be doing a lot better.. I am thinking he also has some anxiety going on.. In preschool he use to bite his nails all the way down.. He stopped probably around last April and now I noticed he started again.. The teacher said he does really well in the am but the afternoon is his down fall.. He is like clock work at a curtain time he starts asking for me and wanting me.. Luckily the teacher has been able to redirect him when this starts..