Anxiety Disorder Due to Medical Condition. Some diseases and Illnesses cause anxiety, including symptoms that directly mimic anxiety disorders. For example, thyroid conditions can cause sudden and extreme anxiety. Lyme disease can also cause panic attacks and anxiety.
SL: Standard Load; tire for normal usage and loads; XL: eXtra Load; a tire that allows a higher inflation pressure than a Standard Load tire, which increases the tire's maximum load; RF: Reinforcedâfor Euro-metric tires, the term 'reinforced' means the same thing as 'Extra Load' RFT: Run-Flat Tire; Tires designed for vehicles without spare tires.
â¦designation that they see next to the size of certain tires. Because XL is commonly used as an abbreviation for extra large, many of them think that the XL tire will be a different size. When talking about tires, XL really means extra load. These tires can use higher air pressure to support more weightâ¦. Load Rating Xl | Extra Load Tires | Xl Tires.