I too have taken 5HTP. My usual dose is 150 mg or 3 caps. You sleeo like a rock and wake up with a smile. 5HTP is a serotonin precursor so it feeds your brain but no sedative hangover.
Your parasites need to be addressed. They are a major stress on your body and can keep you busy grinding your teeth while you should be soundly sleeping. Get busy with a parasite cleanse and repeat it once or twice a year depending upon what your exposure levels are.