for several months I have been feeling tightness in both my legs when walking bending and sitting ? very uncomfortable and I feel at times they just want to give out.. Im very active so this is very uncommon for me 34 yrs i was at 130 and have jumped up to 144 quickly no new eating habits .. and no previous health issues . I just went to ER they did a urine check for things of protein loss sugar everything she said came back very good?