Is symptoms of endocarditis worse at night?

No: Symptoms of endocarditis are the same throughout the day, but the sweating occurs mostly at night. This symptoms you are talking about are concerning for several chronic diseases, but they all are treatable. I strongly recommend you to go to your primary care physician and have those symptoms checked.

Please see your doc: It appears that you have posted more than a half dozen vague questions about this condition without providing any reason why. If you think you are ill, go see your doc. If you are obsessed with this condition but have no symptoms please see your doc & get a referral to a life coach that can help you with the stress.

Cardiac: Often endocarditis can be associated with a degree of pericarditis. This typically will be worse at night in the recumbent position. Endocarditis is an inflammatory or infectious process and typically night time is associated with more fever and discomfort.