Any ideas?

Okay, so I thought maybe I had live bc my head IS SO ITCHY. I treated it with the shampoo and combed though it the best I could by myself. And nothing came out at all. Just the soap. So I rinsed and washed my hair like normal. But I’m still super itchy on my head and freaking myself out thinking I have it. I swear I can feel shit crawling on my head but I’ve combed and looked though my hair and I don’t even see the eggs. So could it be something else? I have color treated hair(it’s blue) so I’m wondering if I could use head and shoulders once a week and see if that helps the itching? I’m due for a color touch up in a few weeks so if it fades it’s okay. Would y’all think it’s lice or something else? My husband is home for the week so I’m going have him check my head and make sure. But I feel crazy and gross bc my head is SO ITCHY.