High C-reactive protein (CRP) levels are often a sign of inflammation in the body, and while CRP levels don't cause symptoms directly, the underlying condition causing the inflammation might. Common symptoms associated with high CRP levels include fever, chills, headache, pain, nausea, vomiting, confusion, rash, and shortness of breath. These symptoms are indicative of a serious infection like bacterial or fungal infections, and in severe cases, they can lead to a life-threatening condition called sepsis or blood poisoning. High CRP levels can also occur due to other factors like hard exercise, viral infections, and chronic conditions like rheumatoid arthritis.
It's important to note that high CRP levels alone don't always indicate a serious medical condition. However, if you experience any of the symptoms listed above, it's crucial to consult with your healthcare provider for diagnosis and appropriate treatment.