Hi thanks for your replies, I've had my binders for nearly two years, and I used to wear it daily, it is only recently that it has begun to hurt. It only feels tight when I first put it on and it used to feel really comfortable, I could wear it till 10pm and only feel a slight ache after. I haven't gained any weight and my bust hasn't increased so I am sure it isn't the sizing. I have two, a short binder and a long one from lesloveboat. The long binder has started hurting my lower ribs and the numbness doesn't happen until the next day. The short one is more comfortable to wear and I don't get pain it until about 5pm but the numbness happens a day after I've been wearing it which is concerning me.