Does anyone's child have a sensory processing disorder? Looking for tips/advice/resources.

My 4 year old has been having some issues, and I've been doing research and its pointing to a (in my opinion) mild case of sensory processing disorder. A few of our current issues are her wiping after using the bathroom and insisting she's wet when not, and it becomes a 10 minute ordeal to go pee. Anything loud really upsets her, out of the norm in some instances, in my opinion. Tags on clothes drive her to a tantrum if not taken care of. I'm not a doctor so this is just my assumption.