Tourette Syndrome at 2 years old?

My 5 year old daughter started what I now know are symptoms of Tourette Syndrome at the age of 2.  I want to say it started with stuttering then excessive and seemingly forced eye blinking. Because those particular "tics" stopped I contributed them to normal childhood tics however every few months some new tic would begin i.e humming sounds, smelling fingers constantly.... Now at age 5 she grunts, snorts and still makes humming sounds. (Also, her father has TS - apparently it was severe as a child, however, had he not told me I would have NEVER known - he as very mild symptoms as an adult).

I believe she also has OCD as she gets VERY upset with me if I do or do not do certain things her way. I know that may sound normal for a child her age but I feel like this is different. It is so often and usually ends with a temper tantrum over the smallest things.  At first I thought it was a behavioral issue or that she was just extremely strong willed, but now i am wondering if it is OCD and that why she freaks out if she can't get her way. Oh and it is not over things like she can't have a piece of candy, it seems to be for weird little things like I closed the car door instead of allowing her.

Also, I am wondering if there is a correlation of early onset and the severity of tourette syndrome? My daughter does not seem to have a severe case SO FAR, but I am so concerned that it might worsen especially since she started showing signs at 2 YEARS OLD! Any research on this?

Thank you!