Please choose the correct ending to complete the given sentence: Health: [header] How to recognize the signs of pain killer addiction [title] Pay attention to how many painkillers you are taking. [step] Once a tolerance is built, you take more to receive the same high that you once felt. You will also notice that you get less relief from any pain when you take your medication.

Ending1: These kinds of pain killers are also called anti-inflammatory painkillers. [title] Evaluate whether you will gradually reduce or limit how much you take. Ending2: If you notice yourself avoiding things you used to do in order to get or take pain medicine, this can be a serious sign of addiction. [substeps] A good rule of thumb is that you might have a problem if you are exceeding your doctor's dosing recommendations. Ending3: [substeps] Note the severity of your morning/evening symptoms. Be aware that many different prescription painkillers affect the body differently, depending on how long you have had the cream applied, how often you start to experience pain, and so on. Ending4: In other words, you need to pay more attention to how many you take and how often. [substeps] If you have a generic painkiller like ibuprofen for insomnia, you may be taking more painkillers than you need.

Answer format: ending1/ending2/ending3/ending4