67 yrs old male C/O epigastric pain & N° for 1month not relate | sᴘᴏᴛ ᴅɪᴀɢɴᴏsɪs

67 yrs old male C/O epigastric pain & N° for 1month not related to food with no aggravating or reliefing factors patient no other GI symptoms reported. Patient report losing 9 Kg of weight in the same period, recent DM and long Hx of smoking. Next step :