One of the classic signs of burnout is negative apathy like you would be a fool to care. As you might imagine, people who feel a high degree of negative apathy don't find many reasons to find enjoyment in their surroundings. If the last time you can remember having a good day was long ago (or you can't remember), then know that you need to make some changes in your life. When every day starts to seem like a bad day, burnout is just around the corner. An increase in consumption of alcohol, tobacco, and caffeine can all be signs of impending or current burnout. The increase can be a manifestation of a cause or symptom of burnout, depending on where the increase occurs. An increase in caffeine or tobacco, which are both stimulants, can be a manifestation of the feeling of insufficiency at the root of burnout. On the other hand, an increase in alcohol consumption can be a sign that the drinker is trying to blunt their emotional responses. While stress is essentially an overreaction to stimuli and burnout is a loss of reaction to stimuli, prolonged stress can lead to burnout. Many people under a great amount of stress will either over- or undereat. You might find yourself craving junk foods in particular. This makes sense. Tired people crave sugar and fat, as sugar and fat can give them a temporary boost of energy and elevation in mood. While this can be true of anyone, it especially applies to those experiencing chronically low levels of energy. Keep in mind that you can binge on things other than food as well. Some people shop compulsively or binge on social media sites when they should be working. Burnout is a chronic condition brought on by too much stress and too many obligations, or an unbalanced life. As such, it has behavioral symptoms beyond the consumption of drugs and alcohol. Do you find yourself procrastinating, coming in late, getting into conflicts with your family, friends, or coworkers, or calling in sick when you're not? If so, it could be an indication of cynicism and overwork. It's not always easy or pleasant to recognize when you might be malingering, so you need to ask yourself if you're making excuses for not completing assignments, snapping at coworkers, or making complaints.
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One-sentence summary -- Try and remember the last time you had a good day. Monitor your consumption of alcohol, tobacco, and caffeine. Notice if you are forgetting to eat (or forgetting to stop). Recognize manifestations of resentment and cynicism.

Private investigators can track down all kinds of people and information, but their skills will vary. Some are good at following people or digging up information, while others can track down someone or something. Before you start looking, you need to be clear about what kind of work you want the PI to do so you can find someone with the right skills and equipment. PIs can provide a variety of services, including background checks, tracking down child support or custody, providing electronic and video surveillance, or tracking down individuals. You can hire a private investigator to help with legal proceedings, including gathering more information for use at a trial, or to provide you with information that may lead to legal actions. Once you know what you are looking for, start looking for names. Start with referrals, people who have used a PI in the past. If you don't know anyone who has hired a PI before, start by flipping through a phone book, or searching for investigators in your area using an internet search engine or service like PI Now. Once you have some names, take a look and see if they have websites, which will allow you to learn more than just seeing a line in the phone book. Most sites will list the business' skills and services, which should help narrow down your list of people to consider. PIs who are good at looking for information will do much of their work in an office, using the internet and telephone to track people down. This can be a useful service, though less so if you want a PI to follow someone for surveillance. Make sure you also consider your location. If you want to track down someone you think is in California, hiring a PI near you in New York will be less helpful than contacting one already in California. Once you have found a PI, make sure to ask him for references. These are people that you can trust who will vouch for the investigator's skills and ability. Once you have some references, follow up and check. Hiring an investigator isn't something you should do lightly, so make sure you know the person you are talking to. Good references to talk to include the duty agent of your local FBI office, a clerk at your county's police department, the watch commander of the sheriffs department, investigators working in the District Attorney's office, and criminal defense lawyers. Most states require that PIs be licensed by the state. Each state has different rules and requirements for a license, so the standards will vary. Still, if your state requires a license, the PIs you look at should have them. License information is available through your state's licensing board, so it should not be difficult to track down. Additionally, when you call the PI, they should be able to give you the licensing number. This licensing body should also be able to provide you with information about any complaints against the investigator. Alabama, Alaska, Idaho, Mississippi, and South Dakota do not require licensing for private investigators. Colorado has a state license, but it is voluntary, so your PI may not have one. You should check to make sure your private investigator carries insurance to protect you and him should anything happen during the course of the investigation. Some states require it as part of the licensing, or for other aspects of the business such as carrying a firearm. Insurance is there for your protection, to make sure you are not liable should something happen during the PI's work on your case. When you start to talk to PIs, you'll need to make sure the investigators you talk to are people you will be comfortable working with. You will need to provide this person with sensitive information, and trust that he will treat it confidentially. If you do not feel comfortable sharing this type of information with this person, you aren't going to work well with the PI. In addition, you should take notice of where and how the investigator interacts with you. People you interview should have a professional office that you can visit, and will clearly spell out the fees for their services. If a potential investigator isn't giving you this information, don't hire him.
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One-sentence summary --
Decide what you want the PI to do. Look for someone. Check references. Ask for a license. Check for insurance. Watch for warning signs.