see related question
Yes, if she has sole legal custody. Not necessarily, if you have joint legal custody. Definitely not, if you have sole legal custody.
Not if there's court access rights. see links below
Yes, because she has SOLE custody, so you have nothing on the kid legally.
You'd have to have permission from spouse and from the courts.
No you are not required to but if you share physical custody or the other parent has visitation you should inform them of any medical issues that they may encounter during their time with them. Sole legal custody simply means that you don't HAVE to discuss medical decisions with the other parent, not that you shouldn't.
I am not sure what your saying I said my ex picked up my son while high I the mother would like to fight for sole custody as opposed to shared custody it might be hard to gain sole custody after that. i think that you could probably get visitation but i doubt sole custody unless the child's real mother does something even more stupid than that
If your ex has custody than yes. If not than the other parent has every right.
see links below
See Link BelowChild Custody- Can Fathers Win