Question

Hey, right i dont know if i am pregnant, but i did a test last week at the doctors and he said it came back negative. Im still getting all the pregnancy symptoms, this would be my 3rd i know they say each pregnancy is differnt but im constantly feeling so sick, tired, im constantly drinking milk cuz of thr heartburn, ive always metal taste in my mouth 🤮 constantly needing too wee and poo 🙈 my boobs are sore, my lower back is killing it feels like ive got stabbing pains constantly, my too and bottom of my stomch always feels bloated my legs and knees keep swelling, im only being able to smoke 2-3 fags a day i use to smoke more (bad habit i know, it helps with my depression and anxiety)

Any ideas on what it can be

Thanks