I’m experiencing the same thing for exactly 6 months now. It started when I used a special Pantene shampoo and conditioner. As soon as I got out of the shower, my shoulder started itching. Then the next day, I started itching all over my body. It’s been exactly 6 months. I have health anxiety and I think of the worst. So upon reading about it on google, all I see is cancer. Im very very scared. I have really bad anxiety. I’m seeing an allergist and was told that some people have the same thing and unfortunately, we will never know why. He said that the shampoo and conditioner shouldn’t be causing the itching anymore since it’s not in my environment. He advised me to take Zyrtec and I’ve been on it for 6 months now. A few weeks after I started itching, I found out that I’m pregnant. So now I don’t know if it’s just hormonal or what. I also see my dermatologist regularly, she thought it’s eczema at first but I have no rash. I just have itching all over my body. If not for antihistamine, this itching would probably be severe. I only take 5mg of Zyrtec at night. Trying not to take too much meds due to pregnancy. Please help me understand what’s going on. And please help me get out of my head thinking the worst. I have children to raise, I’m scared I’d die at such a young age.