Tourette Syndrome is generally considered to be an inherited disorder so to have TS from birth, you would need to have inherited the genes from one or both parents

There are other illnesses that can mimic TS, including some infections eg strep, including Rheumatic fever and Sydenham's Chorea, as well as Lyme Disease from tick bites, amongst others. These often manifest with rapid onset tics and OCD

Some people have been misdx with TS when they in fact have food or environmental allergies triggering the symptoms.

Magnesium can be very helpful for tics.
Inositol (a B vitamin) is often used for OCD successfully

but it really is most important to try to determine what is causing the tics/OCD as then the correct treatment protocol can be followed