Bacterial infections have been known to cause horizontal ridges in nails. Yeast or other fungal infections can lead to nail issues and one of those symptoms can be horizontal ridges. Other infections like heart valve infections and viral warts can also change the way your nail looks, including horizontal ridges.
The clinical syndrome has been characterized by restlessness, anorexia, irritability and insomnia that begin less than 24 hours after discontinuation of marijuana, peak in intensity on days 2 to 4, and last for seven to 10 days (Budney et al., 1999; Haney et al., 1999; Mendelson et al., 1984).
Headaches associated with marijuana withdrawal can last for a few weeks up to a couple of months. Headaches, like most other symptoms of withdrawing from marijuana use, will usually begin one to three days after quitting and will peak two to six days after stopping.