Oral sex is not a known means of transmission for hep c. Hep c is a blood borne virus which requires blood to blood contact. While there is a small risk of sexual transmission hep c is not considered to be an STD although those who engage in rough sex, have multiple sexual partners, or in the presence of HIV there is an increased risk so the use of barrier protection is encouraged by the CDC.
The majority of people infected with hep c do not experience symptoms for many years if ever. Those symptoms are usually from illnesses related to hep c some will develop liver disease after decades of infection so the symptoms would be those if advance liver disease.
Most people (about 70% – 80%) with an acute Hepatitis C infection do not experience any symptoms or show signs of the infection. If Hepatitis C symptoms do occur, they usually appear within two weeks to six months after being exposed to the Hepatitis C virus (HCV). If you do develop symptoms related to Hepatitis C, they’re generally mild and flu-like and may include:
Feeling very tired
Nausea or poor appetite
A yellow discoloration of the skin and whites of the eyes, called jaundice.
The symptoms you listed of itchy skin and feeling tired could be so many things making it too vague to be of diagnostic value. Your other symptoms "White tongue roof of mouth yellow with red spots. Itchy skin bumps on face" are not symptoms of hep c infection.
Please see a doctor for a proper diagnosis and treatment.
It is not possible to obtain a diagnosis on the internet with vague symptoms and without medical testing. We are only a community of patients who are, or were infected with hep c and cannot diagnosis any medical condition. But even a medical professional could not diagnose you with so little information and without testing.