According to researches, people who have been using drugs for longer period, either for some medical purpose or something else, are vulnerable to anxiety attacks. The major reason is sudden stop of drugs intake.
Anxiety attacks may also be the result of the use of recreational drugs, such as amphetamines, ecstasy, LSD, or cannabis etc. In fact, it’s also said that excessive intake of coffee can make one person more anxious than others who are not used to drinking coffee.
In a nutshell, use of drugs in general, and their unavailability causes anxiety, so avoid using them in excess.

Physical symptoms of anxiety may vary from person, depending upon the type of anxiety he/she is suffering from. But some common symptoms are those that almost all types of anxiety sufferers share.

One of the most common symptoms is frightening situation. Sufferers may also feel that their heart is going to burst or they are just unable to think etc. Some other symptoms may include:

• Sweating more
• Inability to concentrate on the things
• A running away attitude and escaping avoiding things
• Shortness of breath
• Faintness and/or weakness of the legs
• Heart palpitations
• Shaking
• Nausea