Every evening, around 5pm, I become a little drowsy with a sinking feeling, I go to lay down, and I start with extreme chilling, lasts for about 1/2 hour when my heart is beating fast, I am bundled up with the heat on high under a blanket, I fall asleep briefly, then wake up with a ringed out extremely weak feeling.
HIT hank for asking to ChatDoctorThis could be due to the infection, and the most likely due to the malarial infection, (If you have recently visited the malarial endemic area, or residing in such area) the best way to get done blood test, this will clear the doubt, meanwhile you can have symptomatic medicine, if required, if you are not taking enough of sleep during night then you could feel like this in evening time next day, hope this information helps you have nice time.