My 25 year old son has Tourette Syndrome,he has related behaviours as well ie:OCD,oppositional defiant behaviours,adhd,add,He also had problems with gross and fine motor skills,heightened senses,ie:touch,taste and smell,
20 years ago there wasn't that much research being done.
Tourettes can also skip generations,or come out in nieces,nephews,brothers or sisters,it is more prevalent in males,the likelihood of someone getting Tourettes depends if both parents carry the gene.
It was explained to me that there are 2 components to the gene,if one component is carried by one parent there is a 25% chance of a child having Tourettes,if both parents are carrying one component there is a 50% chance,and if one parent is carrying both components it is also a 50% chance,if both parents carry both components then it is 100%,this is how it was explained to me 20 years ago,they may have different ideas now.
There is a great book called Tourette Syndrome and Associated Disorders-By David Cummings,he is a Doctor who has Tourette Syndrome,It can answer all your questions.
Good Luck with finding your answers
Thanks for that :) I guess i'll just have to wait it out til march and see what the specialist thinks.