l-tryptophan made me manic and psychotic.
I advise anyone who is taking a medication to increase their serotonin leveled to monitor their anxiety levels very carefully. If your serotonin leveled in you body build up and get too high (as mine did), it can cause anxiety, mania and even psychosis. If you are bipolar or suffer any form of anxiety. Please be very careful. For depression caused by anxiety, I like to take natural tranquilizers such as l-theanine camomile and lemon balm.

always do your research and try to take hens and supliments under the supervision of a doctor, dietitian and herbalist.