I Have Muscle Cramps Every Day. They Occur In My

I have muscle cramps every day. They occur in my neck, hands and feet. Not sure if related but I have COPD, have lost about 25 lbs. over the past 5 years and am holding steady for past year. I have never been over weight and am now 25 lbs. under my athletic weight in high school. I have lately been more tired than ever before (sleeping much more, 8-10 hours). Get tired and sluggish after meals. Only eat one and sometimes two meals a day. I use a lot of salt (way to much), I smoke, I drink about 10 or more 12 oz. cups of tea with about 3-4 tsps. of sugar in each. I eat mostly pasta's.