Definition of meta-analysis : a quantitative statistical analysis of several separate but similar experiments or studies in order to test the pooled data for statistical significance new!
Hand numbness while sleeping has a variety of causes, including sleeping position, carpal tunnel syndrome and diabetes, according to WebMD. Other possible causes include vitamin deficiencies, alcoholism, infections and injuries.
See MD: Hand numbness likely is due to pressure on the nerve either from damage, inflammation or direct pressure. Throat sensation can be topical in nature - not likely lemon water, but excess acid could irritate it. This may also be nerve related. So, get to the MD and find out what is going on.