How should I feel five weeks after undergoing a knee replacement surgery? At this stage of recovery, what specific physical sensations and emotional responses might I anticipate experiencing as my body heals and adapts to this significant life change? Is it typical to encounter fluctuations in pain levels, and how might these variations impact my overall sense of well-being? Furthermore, what role does rehabilitation play in shaping my postoperative emotional landscape, and can I expect moments of frustration or elation as I regain mobility? Could there be any indicators that suggest complications, and should I be particularly vigilant about any unusual symptoms that deviate from the expected recovery trajectory? Additionally, as I engage in physical therapy, how important is it to maintain a positive mindset, and what strategies could facilitate not only physical healing but also mental resilience during this pivotal time? Ultimately, what benchmarks should I be mindful of as I navigate my recovery journey?