Hi. Jaundice can cause ithcy, yellow skin. Spending time in the sunshine can help jaundice. Jaundice is a condition of the liver that causes high billirubin counts. Try to relax. Your doc is doing all the right things running these tests. Many of us here at the posts are going thru similar things. This is a wonderful place to ask questions and get feedback from people who are worried and scared as well. You are not alone! God bless you!