Final answer:
The patient with symptoms and blood test indicating higher levels of thyroid hormones is most likely suffering from hyperthyroidism, which is primary hypersecretion of the thyroid gland.
Step-by-step explanation:
The patient exhibiting symptoms such as sudden weight loss, a rapid or irregular heartbeat, sweating, and nervousness or irritability, and who has blood test results showing higher than normal concentrations of TSH (Thyroid Stimulating Hormone), T4 (Thyroxine), and T3 (Triiodothyronine), with lower than normal TRH (Thyrotropin-Releasing Hormone), most likely has primary hypersecretion of thyroid hormones. This condition is known as hyperthyroidism, a clinical state characterized by an overactive thyroid gland that leads to the symptoms observed.