Hi. Thanks for your query, albeit short and specific. Noted the history and understood your concerns. Getting light headed, feeling like unable to move and need to sit down, cold sweats momentarily after a light drink can be due to over-action of the central nervous system to the alcohol and as is experienced in practice you might have had flu or some medical problems hence got the problem with small amount of alcohol. I would suggest you the following in such a case: Get a medical check up and investigations by your Doctor to know the cause and get treated accordingly. Needless to say do not consume alcohol till you get alright fully. Take a rest. Watch for any further symptoms and see for the developments for you to go for further management as needed.