Tongue blister & weakness. Problem asap?

I used to smoke from NOV 2016 to APR 2017 usually 5 a day. I quit smoking on 30th APR. After 5 days of quitting smoking I started jogging. As days past, my calf muscles started painning and eyes inflammation started.  Currently, I am going to motion 5 times a day. My body started feeling weakness. I have already lost 2.5 kg approx. (from 63.5 to 60.3 Kg). I usually feel hungry after an after of meal. I am having a cough all the time. Currently, my body weight is fluctuating abruptly like 300 gms in a day (either up or down).  I am also having blister for 3 months (pics attached). Please help me out what to do in this scenario? Should go for some medical test or any medication? What should I need to take in my diet on regular basis so that I can cure my weakness problem ASAP?