Blurred vision Things look fuzzy and you can't focus properly. Do not drive with blurred vision. This should wear off after a few weeks. If it does not wear off, see your doctor if you are worried. You won't need glasses.
Weight gain A bigger appetite and putting on weight.
A diet full of vegetables and fibre may help prevent weight gain. See also a separate question in this section. If it is bad, contact your doctor. Your head is pounding and painful. Try aspirin or paracetamol.