Tendonitis and Levofloxacin Teva: side effects?

Hi, I was recently diagnosed with a voluminous maxillary cyst of an odontogenic nature. The otolaryngology I went to a little while ago prescribed the antibiotic mentioned above (Levofloxicin Teva) for 10 days every 12 hours. I state that I am only 18 and my primary care physician said it was really strong as an antibiotic and nothing more. Today I made another visit to another doctor and as soon as I said to take 7 days L. Teva immediately told me to stop as it causes pain in the tendons and so in fact I connected everything and explained to myself why every morning I had pain in the plants of both feet to the point of not being able to walk, tingling in the legsand “heatstroke” in the feet (near the toes). Now I’m a bit scared because I have read many other side effects including headache (even that is present). I wanted to ask for some advice on this and an opinion. Thanks and best regards.