I have an interpretation. If it is a coded message, it might be saying, "This (the clocks, dates/times) is when stuff is going to go DOWN, (or there will be an info drop). Biden will be toppled, and Trump will be erected" This would explain the lines in the follow up tweets. The cacti may be expressing an event will occur in AZ

Perhaps this news article was intended: https://www.informationliberation.com/?id=62490

A potassium-sodium imbalance will mess up a person’s heart beat, but shouldn't cause the kind of body-wide inflammation we’ve seen. Injection of any substance in sufficient quantities will kill a human, but KCl is, in general, a fairly safe chemical. Notice they also included NaCl. If the K-Na balance is correct you won’t even get palpitations