Iv got a really bad cough & sore throat & vomiting with left back head pain wen coughing or vomiting what is this likely to be & shud i seek urgent medical attention?

Keep well hydrated and rest. Screen for Flu, Strep and COVID 19 as indicated. If the vomiting does not resolve within 48 hours, or is worsening, please see your PCP. Keep nasal passages clear with nasal saline to reduce post nasal drip. An over the counter cough remedy with honey is often effective. Monitor temperature and breathing, and watch for signs of vision change and dizziness.