Hi there...for a whole body check up it is better to consult a general physician. They will examine all the systems (mainly respiratory system, abdomen, nervous system, cardiovascular system) and recommend you routine blood tests like complete blood profile, esr, rbs, ps, urine routine,
lft, rft, tft, flp, cxr, hiv1&2, vdrl, hbsag and if needed even ultrasound abdomen. For eyes, it is better to consult a ophthalmologist separately.