If it is stopped suddenly, withdrawal symptoms may occur, such as restlessness, anxiety, runny nose, watering eyes, yawning, sweating, chills, gooseflesh, aches and pains, nausea, diarrhea, poor appetite, high <span style = 'background-color: #dae8f4'>blood</span> <span style = 'background-color: #dae8f4'>pressure</span>
, or fast heartbeat.
Rarely, it can cause numbness or tingling, hallucinations, or panic.
I have never heard of skin numbness but I researched it online and it does
list it as a rare side effect if you stop the drug abruptly.