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According to the Mayo Clinic these are some known causes of leg cramps. As you can see alcoholism and dehydration are listed. I doubt that a couple of glasses of wine will cause them, but drinking water right before going to bed may help.
The red wine probably did not cause the swelling. If it continues you need to see a doc and find out what is causing it and get it treated. I got hit twice in the leg with a bottle of red wine and let me tell you it can cause your leg to swell.