<s>[INST] Major bruise on my left leg that seems to be moving down, I m tired, I didn t fall or hit my leg on anything, I don t do drugs or drink and I just don t feel right it s hard to get up and start moving my leg, feels weak but after awhile standing it seems okay -I m sorry but I have no $$ [/INST] contusions  due to poor vascularity can cause your symptoms also it could happen without any direct hit as burst of blood capillaries is common i wish u could provide age and sex so i can confirm my diagnosisalso for the part where you imptove with movement it indicates arthritis could be in lower back  causing weakness of your leg muscle i hope my answer helps Good Luck </s>