If starvation will cause Terri to suffer, don't we also have to assume that she can and does experience pain on a daily basis (even prior to removal of the feeding tube)?
If she's suffering pain now, then you have to allow that she may suffer pain all the time. A life of constant, unending pain, possibly.
Also, I thought I heard on TV that she is medicated now so she is not feeling pain.
Sure, she MAY feel pain, so let her die of dehydration. That is the most stunning and revealing argument I've heard yet.