A few true story brief examples of why asking people on the internet to guess a diagnosis is a terrible idea.
1) Gecko has hindlimb paresis- Someone on the internet tells the owner it must be calcium deficiency, increases the calcium and d3. Luckily, the owner made the smart decision to take the gecko to the vet.
Cause - hindleg paralysis due to large impacted superworm.
2)Gecko has muscle twitching, once again someone on a forum tells the person it's calcium deficiency. The owner increases the calcium and d3 without any success.
Cause- Vitamin deficiency- not calcium or d3
3) Gecko's head is in a strange position (how it was described to me a year later), someone tells them their leo has Enigma syndrome because it's an Enigma.
Cause- Infection spread to the brain causing neurological symptoms.
This is why hands on examination by an experienced vet is very important. Shaking, tremors, twitches, etc. can be a symptom of many conditions.