Most hitches employ a removable drawbar, which holds the hitch ball. The bars come in two sizes: 1.25 inches (for lightweight pop-ups and bike racks) and 2 inches (for heavy loads). Hitch balls come in three main flavors: 17/8 inches, 2 inches and 25/16 inches. Generally, the bigger the ball, the more weight it can support. If you own two or more trailers that call for different ball sizes, I recommend buying separate drawbars with the proper balls permanently attached.
Poor blood circulation. Conditions such as cardiomyopathy, heart attack, heart arrhythmia and transient ischemic attack could cause dizziness. And a decrease in blood volume may cause inadequate blood flow to your brain or inner ear.
See also: 85% of hospital admissions for chest pain are NOT heart attack. 1  3. Cough: persistent coughing or wheezing can be a symptom of heart failure. 2  4. Dizziness: heart attacks or heart rhythm abnormalities can cause light-headedness or even loss of consciousness.