The organism not only damages the blood vessels by causing them to leak, but also causes clotting inside the vessels.
Additional irregular heartbeats can occur as a result of this procedure, as can damage to the blood vessels that feed the heart.
Capillaries.
blood clots don't "cause" anything. They can block the flow of blood in vessels. they can stop it from leaking out. Of course, if a particular organ needs blood, lack of blood can cause symptoms. But that isn't your question.
The most severe effects of RMSF occur due to damage to the blood vessels, which become leaky. This accounts for the production of petechiae. As blood and fluid leak out of the injured blood vessels, other tissues and organs may swell and become damaged
Ischemic strokes occur due to blood vessels becoming blocked while hemorrhagic strokes are the result of broken blood vessels in or near the brain.
the arterioles
Blood clots are created by a complex chemical reaction and are used by the body to repair damage to blood vessels. Clots can also occur due to lack of mobility and diseases that disrupt the clotting mechanism.
Some weakened blood vessels will swell or worse they can break. If the break happens in the brain a type of stroke can occur.
loop of Henley
Bruising is typically caused by damage to blood vessels under the skin, leading to blood leaking out and forming a visible mark. This damage can result from injury, trauma, or certain medical conditions that affect blood clotting or vessel integrity. Aging and certain medications can also increase susceptibility to bruising.
Redness is a vasodilatation of nearby undamaged blood vessels.
"Diabetes Medicine" is insulin. Your body produces insulin naturally so it is unlikely! The only thing likely to cause nerve damage is having very high blood sugars for sustained periods of time which can cause damage to blood vessels and nerves. However, assuming the condition is controlled well and levels remain between 3.5 and 8 it will take 40 years for these sorts of complications to occur if at all. The best indicator is an HbA1c test.