Last night about 9.30PM my husband became very ill. He threw up his lunch that he had eaten approximately 8hours earlier . He vomited again about an hour later but and it was still a bit clumsy. He had vomited about two more times during the night. This morning he vomited again and this time he brought up dark liquid . He has been very lethargic and sleeping on and off for most of the day. He also goes hot and cold.