Polymyalgia Rheumatica (PMR): Given the patient's age, symptoms of body aches and joint pain, elevated CRP and sed rate, and borderline alkaline phosphatase, PMR is a strong consideration. The patient's referral to rheumatology suggests that this diagnosis was likely considered, but further evaluation may be needed to confirm.

Osteoarthritis: The patient's age and symptoms of joint pain make osteoarthritis a possible diagnosis. However, the elevated inflammatory markers (CRP and sed rate) suggest an inflammatory component that may not be fully explained by osteoarthritis alone.
Vitamin D Deficiency: The patient's low vitamin D level (27) could contribute to muscle and joint pain, and addressing this deficiency may help alleviate symptoms.
Gout: The patient's uric acid level is slightly elevated (5.6), which, combined with joint pain, could suggest gout. However, the absence of more specific symptoms (e.g., acute monoarthritis) makes this diagnosis less likely.
Hypothyroidism: Although the patient's TSH is within the normal range (2.12), some patients may experience symptoms of hypothyroidism (e.g., joint pain, muscle aches) even with mildly elevated TSH levels.

Lymphoma: Although the patient's lymphocyte count is not provided, an elevated WBC (10.34) could suggest a lymphoproliferative disorder. Lymphoma can present with nonspecific symptoms, including joint pain and fatigue.
Multiple Myeloma: This diagnosis is less likely but should be considered in patients with unexplained bone pain, elevated CRP, and anemia (not explicitly mentioned but could be present).
Infectious Endocarditis: Although the patient's Lyme test was negative, other infectious causes of joint pain and elevated inflammatory markers (e.g., endocarditis) should be considered, especially if the patient has a history of valvular heart disease or intravenous drug use.

Relapsing Polychondritis: A rare autoimmune disorder characterized by recurrent episodes of cartilaginous inflammation, which could present with joint pain and elevated inflammatory markers.
Sarcoidosis: A systemic granulomatous disease that can present with joint pain, elevated CRP, and anemia. However, other symptoms (e.g., respiratory, skin, or eye involvement) are typically present.
Hemochromatosis: A genetic disorder characterized by iron overload, which can lead to joint pain, fatigue, and elevated liver enzymes. However, this diagnosis would typically be suggested by other laboratory abnormalities (e.g., elevated iron saturation, ferritin).