Finding the physical signs of addictions is often very hard. The symptoms that come along with addictions is sometimes the exact same thing as other conditions. You have to be very careful and watch very closely to see any kind of difference. One of the physical symptoms that come along with addictions is weight. If you notice a chance in the weight of person this could be a sign. A good way to no if this is the “bad” kind of weight loss is when it is a dramatic drop in weight. Also be aware of what this person is eating so you can compare it to the rate of weight loss, just to be sure. A few other physical signs of addiction are problems with nerves, constant shaking, trouble standing in one place, trouble walking a straight line, and redness of the eyes. These are pretty much definite signs that will not be confused with other conditions.