I'm guessing you mean fasics. I don't tend to get them any more or less these days with working out (I used to but have gotten past that part of it) - usually I feel better for it, I just have to watch out for stuff tightening up afterward and work hard on relaxing areas of tension. Like on Saturday & Sunday I did yard work (trimming, cutting shrubs and limbs, hauling stuff to the curb) and tried to work out the shoulder soreness before it got bad on Sunday and Monday (avoiding the 3-day curse as we used to call it when I was more aggressive about exercising - where after 48 hours of muscle strain it all of a sudden hits you). It works for me, but really, a lot of it is a mind game - I constantly remind myself that there is no reason to tense up and how unnecessary it is along with doing the stretches and breathing techniques etc. Cooling down mind and body. Even when I just work out, like core work (abdominal ex mostly) for an hour - I will do a short cool down. I'm not at it for long periods like the old days. Maybe you are pushing yourself too hard? Or maybe you are not cooling down enough or hydrating well - you'll have to play with it - everyone's different.