3. Fatigue
If your body is in trouble it will first try to defend you. It will work overtime. This will result in exhaustion and fatigue. This happens even when fatigue is nonspecific. Sometimes a specialist cannot diagnose the root cause of the issue at first sight. Deep vein thrombosis needs more detailed tests. Pay attention how you feel during the day and whether you get tired for no obvious reason. If your lifestyle is not very active and you do not practice sports or suffer from insomnia yet feel exhausted and tired most of the time, then it is very possible that the fatigue is clot-related.
4. Tenderness
Usually a blood clot may be somewhere deep within the leg, but you will still know that you have it since you will feel how tender the skin surrounding the clot is to the touch. Make sure that you do not see the veins below the skin in the affected area. If they are visible, then you are very likely to have a blood clot at that site. You should also know that tenderness can occur in both legs, even when only one is affected by the blood clot. See the doctor if you have noticed tenderness or pain.