Hi, Thanks for posting your query.
I hope he has not consumed alcohol at that time.
His blood sugar is normal only. Shivering may be due to release of toxins in body or Vitamin B12 deficiency
. Shivering may also occur in malarial conditions. There is remote possibilities of food poisoning
. He can consume lot of water inorder to dilute the toxins. Has he taken any drugs before dinner?. If there is any history of jaundice nausea
likely to appear. If his condition persists please consult physician.
Thanky you, wish you a speedy recovery.