Talking to your loved one lets them know you want to support them through whatever’s causing these symptoms. Again, the signs below can have other causes, including mental health issues like stress, anxiety, bipolar disorder, or psychosis. Meth use can also lead to changes in mood and behavior. Just make sure you’re keeping an open mind to other possibilities and not making assumptions. If you’re concerned about a loved one who’s showing some (or none) of these signs, it’s probably a good idea to have a conversation with them. What’s more, not everyone who uses meth will show these signs. It’s important to remember that these symptoms can all have other explanations, too: anxiety or other mental health concerns, skin conditions, or untreated dental issues, to name a few. They may also mention intense headaches and difficulty sleeping. frequent scratching or picking at the hair and skin.jerky or twitchy body movements or tremors.It’s true that meth can cause a range of visible, physical symptoms for some folks, including: We’ve all seen the way the media portrays people who use crystal meth, whether it’s in fictional TV shows or ubiquitous “before and after” photos highlighting missing teeth and facial sores. First, consider any physical signs you’re worried about