At the very least you should get back the price of your materials. Most say two or three times the cost of materials, depending on what the economy will take. That will give you an amount for your time. You deserve a fair wage for your work. $20 for a full size afghan is much too little IMHO. You could probably sell a hat and scarf for that.
Doctors often prescribe statins for people with high cholesterol to lower their total cholesterol and reduce their risk of a heart attack or stroke. While statins are highly effective, they have been linked to muscle pain, digestive problems and mental fuzziness in some people and may rarely cause liver damage.
Medications that elevate levels. Examples of medications that may cause elevations of liver enzymes include the statins (used in treating high blood cholesterol levels) some antibiotics, some antidepressants, and some medications used for treating diabetes, tacrine (Cognex), aspirin, and quinidine.