It is very common to experience changes in sexual stamina, and these concerns are highly treatable. Depending on the underlying cause, medications like sildenafil or tadalafil can help by improving blood flow. If a hormone deficiency is responsible, testosterone replacement therapy might be considered after a simple blood test. Lifestyle factors like stress, sleep, and cardiovascular health also play a major role. I highly recommend consulting a doctor or urologist. They can safely identify the root cause and prescribe the most effective treatment for you. Please do not worry, as this is a very common and manageable issue.