Tetanus???

I'm in a bit of a panic at the moment. I started cutting quite a long time ago, a couple months, but recently its been getting much much worse. I don't cut very deep but I do cut a lot. A few days after this habit started b getting worse i started getting extremely ill. Nausea, shakiness, reflux, and bloating. I've had stomach issues before and my stomach's pretty sensitive so at first I just passed it off as "oh it must be hormones" or "I must've eaten something weird". Its been getting worse. I started cutting a lot around a week ago, and I've had intense nausea episodes a little over 1/2 of those days. I use a pencil sharpener blade reserved for this purpose, so there's no fresh lead on it and I clean it in hot water before using it. I'm really scared that this nausea is something more than just stomach issues since I haven't had any in quite awhile, and if it is I'm not sure what to do. My mom would kill me if she found out I was cutting myself. I could really really use some help and advice to stop cutting. I know I shouldn't cut, but I don't know what else to do and I'm scared I've made a huge mistake by ever cutting in the first place. I really need some advice.